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X= A-10 B-12 C-square root of 81 D-5
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5 votes
X=
A-10
B-12
C-square root of 81
D-5

X= A-10 B-12 C-square root of 81 D-5-example-1
User Farkhat Mikhalko
by
7.1k points

1 Answer

5 votes
A. Line that equals 7 must be perpendicular due to the triangle being isosceles. Use Pythagorean theorem on one of the triangles to find that the missing length is 5. 5 can be multiplied by 2 because the triangles are congruent. So x=10.
User Kavadias
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