Question

find perimeter of a circle whose radius of 1/4 part if 21m​

Answer 1

Answer:

33m

Step-by-step explanation:

AS GIVEN:

$r=\frac{1}{4}\times21$

perimeter= $2\pi r$

perimeter=$2\times\frac{22}{7}\times\frac{1}{4}\times21=33$m

Answer 2

Answer:

perimeter of the circle =2πr

2×22/7×1/4/21

44/7×1/4×21

11/7×21

33msq.

circumference of the circle=33m sq.