Question

Write the equation of the circle whose center is at the origin and whose diameter is 12.5

Answer 1

The equation of the circle whose center is at the origin and whose diameter is 12.5 is x²+y²=39.0625

Equation of a circle

The formula for finding the equation of a circle is expressed as:

(x-a)² + (y - b)² = r²

where

(a, b) is the centre

r is the radius

Given the following

(a, b) = (0, 0)

r = 12.5/2 = 6.25

Substitute

(x-0)² + (y - 0)² = 6.25²

x²+y²=39.0625

Hence the equation of the circle whose center is at the origin and whose diameter is 12.5 is x²+y²=39.0625

Learn more on equation of a circle here: brainly.com/question/1506955

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