Question

the difference between the circumference and radius of a circle is 37cm the area of the circle is

Answer 1

The difference the circumference and radius of a circle is 35 cm

2pir-r=37cm

radius=7cm

New area of the circle=pi r^2=153.86=154 cm=1.54m.

Answer 2

✬ Area = 154 cm² ✬

Explanation:

Given:

• Difference between circumference and radius of a circle is 37 cm

To Find:

• What is measure of area of the circle?

Solution: Let the radius of circle be r cm. We know that circumference of a circle is 2πr

• Taking π = 3.14

$\small\implies{\sf }$ 2 x 3.14 x r

$\small\implies{\sf }$ 6.28r (Circumference)

A/q

$\small\implies{\sf }$ 6.28r – r = 37

$\small\implies{\sf }$ 5.28r = 37

$\small\implies{\sf }$ r = 37/5.28

$\small\implies{\sf }$ r = 3700/528

$\small\implies{\sf }$ Radius = 7 cm (approx)

★ Area of Circle = πr² ★

$\small\implies{\sf }$ Area = 3.14 x 7 x 7

$\small\implies{\sf }$ 153.86 cm²

Hence, Area of Circle is 154 cm²