Question

PLEASE DO AS DIRECTED

Answer 1

Answer:

78.5

Step-by-step explanation:

2πr = circumference

2*3.14*r = 31.4

r = 5

area= πr^2

= 3.14*5*5

= 78.5

see if it helps

Answer 2

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Circumference of a circle = 2πr

Given:-

Circumference of a circle = 31.4cm

Therefore, 2πr = 31.4cm

$\implies$ 2 × 3.14 × r = 31.4

$\implies$ r = 5cm

Now, Again Area of the circle Is given as:-

Area = π$r^2$

$\implies$ Area = 3.14 × $(25)^2=78.5cm^2$

Hence, the Radius and area of the circle is 5 cm and $78.5cm^2$.