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This is very hard, I don't understand.

This is very hard, I don't understand.-example-1

1 Answer

10 votes

Answer:


4x - 6 = 90 \\ 4x = 96 \\ \boxed{x = 24}

Now, AD is an altitude of∆ABC

Therefore, D is the midpoint of BC


x + 7 = 2x - 15 \\ \boxed{x = 22}

CD is (22+7) = 29 & DB is (2×22-15) = 29


\huge \boxed{\: x = 24 }\\ \huge \boxed{CD \: and \:DB= 29}

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