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43 votes
43 votes
10. If mACD = (7x - 12) and
mBDC = (10x + 5), find x

User KingBob
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1 Answer

15 votes
15 votes

Since both angles will be a part of triangle, and the third angle would be 90° as, the vertices meet at an centre of diagonal, hence they bisect each other.

7x-12 +(10x+5) = 90°

==> 17x -7= 90°

==> 17x = 97°

==> x = 97°/17

==> x = 5.70° (approx)

User Orange Lux
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