Question

Round to the nearest tenth.

Answer 1

From the formula given:

A = 150 ft²,  π ≈ 3.14

r = √(A/π)

r = √(150/π)

r = √(150/3.14)    use calculator

r ≈ 6.911

r ≈ 6.9 

The tenth digit is 9, and the digit after it is 1, and that is not up to 5, so the 9 is not rounded up to 10, it remains as 9.

Radius is ≈ 6.9 feet to nearest tenth

Hope this helps.