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A circle is entered on the point (-1,5) and contains the point (7,11). What is the area of this circle?

User JosephT
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1 Answer

4 votes

The answer is 100.

Explanation:

Given:

A circle is centered on the point(-1,5) and contains the point(7,11)

To find:

Area of a circle.

Formula:

(x – a)2 + (y – b)2 = r2

Solution:

D(A,B)=√ (xa − xb)2 + (ya − yb)2

D(A,B)=√ (7 + 1 )2 + (11− 5)2

D(A,B)=√ (8 )2 + (6)2

D(A,B)=√ 100

D(A,B)=10

Substituting in the above equation

(x + 1 )2 + (y – 5)2 = 100

User MiguelSlv
by
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