Question

Here are two similar solid toys.
A
B
The ratio surface area of toy A : surface area of toy B is 7:9
The volume of toy B is 20 cm
I
Work out the volume of toy A.
Give your answer correct to 3 significant figures.

Answer 1

Answer:

13.7

Step-by-step explanation:

7*k²=9

k²=9/7

k=√9/7

k=1.133893419

20/1.133893419³=13.7