More This Test 25 pts possible 9 cm ow all 306 PM 442017 Sol

More This Test: 25 pts possible 9 cm ow all 3:06 PM 4/4/2017

Solution:

Given that :

Radius = r = 9 cm

Circumference = 2r

= 2*9

C = 18 cm ( in term of )

C = 56.548 = 56.55 cm ( nearest to 10th)

Area of circle = r²

A = (9)²

A = 81 cm² ( in term of )

A = 254.469 cm²

A = 254.47 cm² ( in terms of 10^th)