Level 2
The circles are not drawn to scale. The small circle is with radius a and the big circle is with radius A. The ratio of a to A is 4 : 7. If the area of the small circle is 169π cm2, find A. Express the answer in mixed number.
Level 2
The circles are not drawn to scale. The small circle is with radius a and the big circle is with radius A. The ratio of a to A is 4 : 7. If the area of the small circle is 169π cm2, find A. Express the answer in mixed number.
Level 2
Jack bought some paint to paint his house. He used 1835 ℓ of paint for the living room, 812 ℓ of paint for the study room and 1034 ℓ of paint for the master bedroom. How many litres of paint did he use altogether? Give your answer as a mixed number in its simplest form.
