Level 2
Observe the number pattern in Figure A and Figure B. What is the missing number in Figure C?
2 m
Level 1
The figure shows a rectangle measuring 12 cm by 9 cm. What is the area of the shaded part in the rectangle?
2 m
Level 2
The sides of a triangle are in the ratio 5 : 2 : 3. The length of the longest side is 20 cm. Find the length of the shortest side of the triangle.
2 m
Level 2
The ratio of three sides of a triangle is 4 : 5 : 3. If the perimeter of the triangle is 60 cm, how long is the longest side of the triangle?
2 m
Level 3
How many shaded triangles will there be in Pattern 25?
3 m