(7) In ABC if side AB side AC, BC = 20 cm.
ZB = 42°, and seg AD I seg BC. Find the length of AD. (tan 42° = 0.9)
(Answer: AD = 9 cm
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Answer:
Correct option is
B
∠A=∠C
In △ABC , AB=AC
∴ the triangle is isoceles.
In an isoceles triangle the angles opposite to equal sides are equal.
∴∠A=∠C
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