Question

find the radius and area of a circle if it's circumference is 154 .​​

Answer 1

Answer:

Radius=24.51 area=1887.28

Step-by-step explanation:

Radius

r=C

2π=154

2·π≈24.50986

Area

A=πr2=π·24.512≈1887.28068

Answer 2

Answer:

Radius = 24.5cm

Area = 1886.5 cm²

Step-by-step explanation:

Given, circumference = 154cm

=> 2πr = 154

=> πr = 77

=> r = 77 × 7/22

= 49/2 cm = 24.5cm

Area = πr² = 22/7 × 49/2 × 49/2

= 11 × 7 × 49/2

= 77 × 49 / 2

= 3773/2 cm² = 1886.5 cm²