Question

find the diameter of circle when its curcumference is given:
i) 44cm
(step by step explanation please)​

Answer 1

Given:

Circumference of the circle = 44 cm

To Find:

The diameter of the circle.

Formula:

Circumference of a circle = 2πr

where, π = pi and r = radius of the circle

Explanation:

According to the question,

2πr = 44

or, ${\tt {\frac {22}{7} \times r = \frac{44}{2} = 22}}$

or, ${\tt { r = 22 \times \frac{7} {22} = 7 \: cm}}$

Answer:

The radius of the circle is 7 cm.

The diameter will be 2(7) = 14 cm.

Therefore, the diameter of the circle is 14 cm.

Answer 2

Answer:

14cm

step by step explanation :

circumference = 2πr

given, 2πr = 44cm

πr = 44/2 = 22cm

r = 22/π

diametere is 2 times the radius.

therefore diameter = 2 × 22/π

= 44/π

= 44 ÷ 22/7

= 44 × 7/22

= 2×7

= 14 cm.