Question

area òf circle is 75.46 m square. then find the diameter of circle​

Answer 1

Ello..✌✌

Let the radius of circle be 'r' cm.

Given : - Area = 75.46 sq.m

We know that, area = πr²

Now,

r² = (75.46)(7/22)

=> r²=24.01

=> r=4.8

Therefore,

diameter = 2r

diameter (D) = 2(4.8) = 9.6m

✔ Hence, the diameter of circle is 9.6 m.

Answer 2

Answer:

9.8m

Step-by-step explanation:

Area of a circle =75.46

$\pi {r }^{2} = 75.46 \\ {r}^{2} = 75.46 \div 22 \div 7 \\ {r}^{2} = 343 \times 7 \div 100 \\ r = \sqrt{7 \times 7 \times 7 \times 7 \div 100} \\ r = 49 \div 10 \\ r = 4.9 \\ d = 2 \times r \\ d = 2 \times 4.9 \\ d = 9.8$