Question

find the diameter nd radius when the circumference is 1)22cm
2)61.6m
I know the answer but i want the solution the answer is 1)D=7,r=3.5
2)d=19.6,r=9.8m
who will answer this i will mark them as brainliest.​

Answer 1

Answer:

In its simplest form, the ratio of the circumference of a circle to its radius is two to one. For every one unit of radius, there is two units in the circumference.

Step-by-step explanation:

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Answer 2

Answer 1. r= 3.5 cm d= 7cm

Answer 2.r= 9.8 m d= 19.6 m

Step-by-step explanation:

1. Given,

Circumference = 22cm

Circumference => 2 pi r= 22 cm

=> 2× 22/7 × r = 22

=> 6.28 × r =22

$2 \times 22 \div 7 \times x$

=> r = 22÷6.28

=> r = 3.5 cm

• radius is 3.5 cm and diameter is 7 cm

2. Given,

Circumference= 61.6 cm

Circumference=> 2 pi r = 61.6

=> 2×3.14×r =61.6

=> 6.28 ×r = 61.6

=> r= 61.6÷ 6.28

=> r= 9.8m

radius = 9.8 m and diameter = 19.6 m

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