find the Value of x in the following.
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Answer:
18 = BDC
Step-by-step explanation:
Divide the triangle to two parts.
Triangle ADC will be formed.
a^2 + b^2 = c^2
a^2 + 12^2 = 15^2
a^2 = 15^2 - 12^2
a^2 = 225 - 144
a^2 = 81
a = 9
BDC = 9 × 2 = 18
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