IMO Practice Test — Two-Dimensional Shapes
6 Questions • 12 min • Olympiad level
12:00
Question 1 of 6
hard
Rectangle: width=5cm area=30 sq cm. Length?
4 cm
5 cm
6 cm
7 cm
Explanation: 30 = l x 5; l = 6 cm
Question 2 of 6
medium
Most sides: pentagon hexagon octagon heptagon?
Pentagon
Hexagon
Heptagon
Octagon
Explanation: Octagon = 8 sides
Question 3 of 6
medium
Perimeter of square is 24cm. Side length?
4 cm
6 cm
8 cm
12 cm
Explanation: 24/4=6 cm
Question 4 of 6
medium
Rectangle divided by one diagonal makes how many triangles?
1
2
3
4
Explanation: 2 triangles
Question 5 of 6
medium
4 sides not all equal 4 right angles. What shape?
Square
Rectangle
Rhombus
Parallelogram
Explanation: Rectangle
Question 6 of 6
medium
Triangle with exactly 2 equal sides?
Scalene
Isosceles
Equilateral
Right
Explanation: Isosceles triangle