Question

Please help don't answer if you don't know it thank you.

Answer 1

The answer for the first one would be Pi x D. So 3.14x46 = 144.44 which rounds to 144.4

The second answer is (3.6 x 4.8) + (1/2 Pi x D) = 17.28 + 11.304 = 28.584. This can be rounded to 28.6