Question

find the radius of the circle whose area is 616 CM square​

Answer 1

GIVEN

• AREA OF CIRCLE=616CM²
• USING FORMULA

AREA OF CIRCLE

$= > \pi \: {r}^{2} = 616 \\ \\ = > \frac{22}{7} \times {r}^{2} = 616 \\ \\ = > {r}^{2} = \frac{616 \times 7}{22} \\ \\ = > {r}^{2} = 28 \times 7 \\ \\ = > r = \sqrt{196 } \\ \\ = > r = 14cm$

HENCE:-

• THE RADIUS OF CIRCLE IS 14CM

Answer 2

Let the radius be r.

A/Q, Area of the circle = 616cm²

=> πr² = 616

=> 3.14 × r² = 616

=> r² = 616/(22/7)

=> r² = 196

=> r = √196

=> r = 14cm

.°. r = 14cm