1.
Gambar bangun di atas adalah gambar bangun ....
Correct Answer
B. Persegi
Explanation
The given shape in the picture is a square because it has four equal sides and four right angles. A square is a type of quadrilateral where all sides are of equal length and all angles are right angles.
2.
Bangun yang memiliki 3 sisi dan 3 sudut adalah ....
Correct Answer
C. Segitiga
Explanation
A bangun with 3 sides and 3 angles is called a triangle. A triangle is a polygon with three sides and three angles. It is the only polygon that can have exactly three sides and three angles. Therefore, the correct answer is "Segitiga" which means "Triangle" in English.
3.
Bangun yang memiliki 4 sisi, 2 pasang sisi sama panjang, dan memiliki 4 sudut yang sama besar adalah ....
Correct Answer
D. Persegi panjang
Explanation
A shape that has 4 sides, 2 pairs of equal sides, and 4 equal angles is a rectangle. A rectangle is a type of quadrilateral that has opposite sides that are equal in length and all angles are right angles. Therefore, the correct answer is "Persegi panjang" which translates to "rectangle" in English.
4.
Gambar bangun di atas ini adalah gambar bangun ...
Correct Answer
C. Segitiga sama kaki
Explanation
The given image shows a triangle with two sides of equal length. This indicates that it is an isosceles triangle, which is a type of triangle with two sides of equal length. Therefore, the correct answer is "Segitiga sama kaki" (Isosceles triangle).
5.
Segitiga yang mempunyai tiga sisi yang sama panjang disebut segitiga ....
Correct Answer
D. Segitiga sembarang
Explanation
Segitiga yang mempunyai tiga sisi yang sama panjang disebut segitiga sama sisi. Segitiga sembarang tidak memiliki sisi yang sama panjang.
6.
Gambar diatas adalah gambar segitiga ...
Correct Answer
A. Siku-siku
Explanation
The image above is a picture of a right triangle. A right triangle is a triangle that has one angle measuring 90 degrees. In the given image, one of the angles is clearly a right angle, which confirms that it is a right triangle.
7.
Bangun persegi mempunyai sisi yang ....
Correct Answer
C. Sama panjangnya
Explanation
The correct answer is "Sama panjangnya" because a square is a special type of rectangle where all four sides are equal in length. Therefore, the sides of a square are always the same length.
8.
Gambar bangun diatas adalah ....
Correct Answer
A. Layang layang
Explanation
The given shape in the image is a layang-layang. A layang-layang is a quadrilateral with two pairs of congruent sides that are not parallel. Its opposite angles are also congruent. In the image, we can see that the shape has two pairs of sides that are equal in length and the opposite angles are also equal. Therefore, the correct answer is layang-layang.
9.
Bangun persegi panjang mempunyai .... sisi.
Correct Answer
C. 4
Explanation
A rectangle has four sides.
10.
Segitiga sama kaki mempunyai sisi yang sama panjang sebanyak ....
Correct Answer
A. 2
Explanation
A triangle with two equal sides is called an isosceles triangle. In an isosceles triangle, only two sides are equal in length. Therefore, the correct answer is 2, as there are two sides of the triangle that have the same length.
11.
Gambar di atas merupakan gambar bangun ...
Correct Answer
A. Jajar genjang
Explanation
The given image represents a jajar genjang (parallelogram) because it has opposite sides that are parallel and equal in length. Additionally, the opposite angles are also equal.
12.
Bangun datar yang tidak memiliki sudut adalah bangun ....
Correct Answer
B. Lingkaran
Explanation
A lingkaran is a two-dimensional shape that consists of all points in a plane that are equidistant from a fixed center point. It does not have any angles because it is a curved shape.
13.
Segitiga yang tidak memiliki sisi yang sama panjang dan memiliki sudut yang besarnya berbeda-beda adalah ...
Correct Answer
D. Segitiga sembarang
Explanation
A segitiga sembarang is a triangle that does not have any sides of equal length and has angles of different sizes. This means that all three sides of the triangle are different lengths, and the angles of the triangle are not equal to each other. Therefore, a segitiga sembarang is the correct answer for this question.
14.
Bangun di bawah ini adalah gambar bangun ,...
Correct Answer
A. Persegi panjang
Explanation
The given answer "Persegi panjang" is correct because the shape shown in the image has four sides, with opposite sides being parallel and equal in length. This matches the definition of a rectangle or a square, both of which are types of rectangles. Since a square is a special type of rectangle with all sides equal in length, it can also be considered a valid answer.
15.
Gambar di atas yang merupakan segitiga siku-siku adalah ....
Correct Answer
D. A dan B
Explanation
The given image shows a right-angled triangle. The sides of a right-angled triangle are usually labeled as A, B, and C, with A and B being the two shorter sides and C being the longest side, also known as the hypotenuse. Therefore, the correct answer is A and B, as these are the two shorter sides of the right-angled triangle in the image.
16.
Bentuk buku gambar biasanya berbentuk ....
Correct Answer
D. Persegi panjang
Explanation
Buku gambar biasanya berbentuk persegi panjang karena bentuk ini memberikan ruang yang lebih luas untuk menggambar. Dengan bentuk persegi panjang, gambar dapat diletakkan dengan lebih rapi dan terorganisir. Selain itu, bentuk persegi panjang juga lebih mudah untuk ditata dan disimpan.
17.
Benda yang berbentuk lingkaran adalah ...
Correct Answer
A. Jam dinding
Explanation
The correct answer is "Jam dinding" because a wall clock is typically round in shape, resembling a circle.
18.
Bentuk alas papan catur adalah ...
Correct Answer
C. Persegi
Explanation
The correct answer is "Persegi" because a chessboard is typically made up of squares that are arranged in rows and columns. Each square is a perfect square shape with four equal sides, which is the definition of a square. Therefore, the shape of the chessboard's base is a square.
19.
Sudut yang memiliki besar 90° disebut sudut ....
Correct Answer
A. Siku-siku
Explanation
Sudut yang memiliki besar 90° disebut siku-siku karena sudut tersebut membentuk sudut yang tepat, yaitu sudut yang membentuk garis lurus sejajar dengan permukaan datar.
20.
Sudut lancip adalah sudut yang besarnya kurang dari ....
Correct Answer
B. 90 Derajat
Explanation
Sudut lancip adalah sudut yang besarnya kurang dari 90 derajat. Sudut 90 derajat merupakan sudut yang tepat, bukan sudut lancip.
21.
Gambar di atas adalah gambar dari sudut ....
Correct Answer
C. Tumpul
Explanation
The image in the question appears to show an angle that is greater than 90 degrees, indicating that it is an obtuse angle. This is consistent with the term "tumpul" which means obtuse in Indonesian.
22.
Sudut yang dibentuk oleh jarum jam pada pukul 01.00 adalah ...
Correct Answer
B. Sudut lancip
Explanation
Pada pukul 01.00, jarum jam akan menunjuk ke angka 1 di tengah jam. Sudut yang dibentuk oleh jarum jam pada posisi ini adalah sudut lancip, karena sudut tersebut kurang dari 90 derajat.
23.
Gambar di atas secara urut menunjukan ...
Correct Answer
C. A adahal sutu lancip, B adalah sudut tumpul dan C adalah sudut siku-siku
Explanation
The correct answer is A because the image shows an acute angle for A, a obtuse angle for B, and a right angle for C.
24.
Sudut yang besarnya adalah adalah termasuk sudut ....
Correct Answer
B. Lancip
Explanation
The correct answer is "Lancip" because a lancip angle is an angle that measures less than 90 degrees. It is not a tumpul angle (which measures more than 90 degrees), siku-siku angle (which measures exactly 90 degrees), or sembarang angle (which is an arbitrary angle with no specific measurement).
25.
Besar sudut yang dibentuk oleh jam di atas adalah ....
Correct Answer
B. 90 Derajat
Explanation
The correct answer is 90 degrees. This is because the hour hand of a clock moves in a complete circle, which is 360 degrees, in 12 hours. Therefore, in one hour, the hour hand moves 360/12 = 30 degrees. Since the clock is showing 3 o'clock, the hour hand is pointing directly at the number 3, which is 90 degrees from the 12 o'clock position.