Math, asked by sharmasurbhi, 3 days ago

The side BC of ΔABC has been produced to a point D, such that ∠ACD = 140°. If ∠B = 3∠A, then find ∠A.

Answers

Answered by Squishyoongi

5

$\boxed{Hope it Helps}$

By exterior angle theorem

AngleACD=AngleA+AngleB

120degree=angleA+1/2angleA

120degree=2angleA+angleB/2

240degree= 3AngleA

angleA=80degree

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