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rosijanka [135]
3 years ago
10

A circle is centered at the point (-3, 2) and passes through the point (1, 5). The radius of the circle is

Mathematics
1 answer:
Alex Ar [27]3 years ago
5 0

Answer:

r =5

Step-by-step explanation:

Given

(h,k) = (-3,2) -- center

(x,y) = (1,5) --- pass through

Required

The radius (r)

The equation of circle is:

(x - h)^2 + (y - k)^2 = r^2

So, we have:

(1 - -3)^2 + (5 - 2)^2 = r^2

(4)^2 + (3)^2 = r^2

16+9 = r^2

25 = r^2

Take square roots of both sides

5 = r

r =5

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The width of the triangle is 3/4 the length. The perimeter is 252cm. What is the width of the triangle.
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