The answer is (2) 5cm but I want explanation, pls explain. Spam answer will report. Thank you.
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Answer:
In ABC, using Pythagoras theorem
(hyp)²= (base)²+(height)²
(15)²= (BC)²+(9)²
225-81= BC²
BC= √144
BC= 12 CM
In ACD, using Pythagoras theorem
(hyp)²= (base)²+(height)²
AD²= (15)²+(8)²
AD²= 225+64
AD= √289
AD= 17 CM
Step-by-step explanation:
AD - BC = 17 - 5 = 12 CM
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