IMO Geometry

Question 1

What is the sum of interior angles of a triangle?

Accepted Answer

180°

Answer

90°

Answer

270°

Answer

360°

Question 2

A rectangle has a length of 12 cm and a width of 5 cm. What is its perimeter?

Accepted Answer

34 cm

Answer

60 cm

Answer

17 cm

Answer

24 cm

Question 3

A circle has a radius of 7 cm. What is its area? (Use π ≈ 22/7)

Accepted Answer

154 cm²

Answer

44 cm²

Answer

98 cm²

Answer

77 cm²

Question 4

Which of the following is a property of an equilateral triangle?

Accepted Answer

All sides are equal

Answer

One angle is 90°

Answer

Two sides are equal

Answer

No sides are equal

Question 5

What is the area of a triangle with base 10 cm and height 6 cm?

Accepted Answer

30 cm²

Answer

60 cm²

Answer

16 cm²

Answer

32 cm²

Question 6

How many lines of symmetry does a square have?

Accepted Answer

4

Answer

2

Answer

6

Answer

8