Question

1. Find the circumference of the circles with the following radius: (Take = 22/7)
a) 14 cm
(b) 28 mm
(c) 21 cm
2
1
that​

Answer 1

Answer:(a)2llr=2×22/7×14

=44×2

=88cm

(b)2llr=2×22/7×28

=44×4

=176mm

(c)2llr=2×22/7×21

=44×3

=132cm

Hope it helped u.......

Answer 2

We know that Circumference of circle=2πr

⇒ Radius =28 ( Given)

⇒ Circumference = 2×22/7×28

⇒ Circumference = 176mm