Calculate the area given, each radius 40mm 2.8m 15units 9cm 142.8mm



Calculate the area given, each radius 40mm 2.8m 15units 9cm 142.8mm​

Answer:

1600π mm²

7.84π m²

225π units²

81π cm²

20391.84π mm²

Step-by-step explanation:

The question is simple as soon as you understand how you solve the area.

Assuming you are talking about a circle, the area is πr², or pi * radius squared.

All you have to do is multiply each given radius by itself again and multiply that by π

π * 40² = 1600π mm²

π * 2.8² = 7.84π m²

π * 15² = 225π units²

π * 9² = 81π cm²

π * 142.8² = 20391.84π mm²


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