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gtnhenbr [62]
3 years ago
8

100 points! Mhanifa please help! Look at the picture attached. I will mark brainliest. Random answers will be reported guys.

Mathematics
2 answers:
irakobra [83]3 years ago
6 0
<h2>Answer:</h2>

<u>Given points are</u>,

A = (-4,6)

B = (6,6)

C = (6,2)

<u>To find out the circumcenter we have to solve any two bisector equations and find out the intersection points</u>.

<u>So, mid point of AB</u> = [(- 4 + 6)/2, (6 + 6)/2] = (1, 6)

<u>Slope of AB</u> = [(6 − 6)/(6 + 4)] = 0

<u>The slope of the bisector is the negative reciprocal of the given slope</u>.

<u>So, the slope of the perpendicular bisector</u> = 0

<u>Equation of AB with slope 0 and the coordinates (1, 6) is</u>,

(y + 4) = 1(x – 6)

x – y = - 2……………(1)

<u>Similarly, for AC</u>

<u>Mid point of AC</u> = [(- 4 + 6)/2, (6 + 2)/2] = (1, 4)

<u>Slope of AC</u> = [(2 − 6)/(6 + 4)] = - 4/10

<u>The slope of the bisector is the negative reciprocal of the given slope</u>.

<u>So, the slope of the perpendicular bisector</u> = 10/4

<u>Equation of AC with slope 10/4 and the coordinates (1, 4) is</u>,

(y + 4) = -1(x – 4)

y – 3 = -x + 4

x + y = 7………………(2)

<u>By solving equation (1) and (2)</u>,

(1) + (2) ⇒ 2x = 10;

Or, x = 5

<u>Substitute the value of x in to (1)</u>

3 – y = -1

y = 3 + 1 = 4

Thus, the circumcenter is (5, 4).

Natalija [7]3 years ago
4 0

Steps by explanation:

for second one

centroid ={(1+3+5)/3,(2+4+0)/3}=(9/3,6/3)

=(3,2)

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