IMO Geometry 3

Question 1

Which quadrilateral has exactly one pair of parallel sides?

Accepted Answer

Trapezoid

Answer

Rectangle

Answer

Rhombus

Answer

Square

Question 2

What is the area of a square with perimeter 24 cm?

Accepted Answer

36 cm²

Answer

48 cm²

Answer

64 cm²

Answer

144 cm²

Question 3

In a circle, what is the longest chord called?

Accepted Answer

Diameter

Answer

Radius

Answer

Arc

Answer

Tangent

Question 4

A triangle has sides of 5 cm, 5 cm, and 8 cm. What type of triangle is it?

Accepted Answer

Isosceles

Answer

Equilateral

Answer

Scalene

Answer

Right-angled

Question 5

What is the total surface area of a cube with side 3 cm?

Accepted Answer

54 cm²

Answer

27 cm²

Answer

36 cm²

Answer

81 cm²

Question 6

The exterior angle of a regular polygon is 45°. How many sides does it have?

Accepted Answer

8

Answer

6

Answer

9

Answer

10