Question

the are of a circular plate is 77.5cm2, what is the diameter of the plate​

Answer 1

this is the answer of the question

Answer 2

Answer:

• 9.96 cm is the required diameter of the plate.

Step-by-step explanation:

According to the Question

It is given that,

• Area of Circular Plate = 77.5 cm²

we have to calculate the diameter of the plate .

As we know that area of Circular Plate is calculated by

• Area of Circular Plate = πr²

where,

π denote 22/7 or 3.14

r denote radius of circle

by putting the value we get

↠ 77.5 = 3.14 × r²

↠77.5/3.14 = r²

↠ 24.68 = r²

↠ √24.68= r

↠ r = 4.96 cm

Now, calculating the diameter of Circular Plate

↠ Diameter = 2×Radius

↠ Diameter = 2×4.96

↠ Diameter = 9.92 cm

• Hence, the diameter of the circular plate is 9.92 cm (approx).