Question

Prove that angle sum of a triangle is 180. If angles of a triangle are in the ratio 3:4:5, Find the smallest angle.

Answer 1

Step-by-step explanation:

Sum on ratio terms=3+4+5=12

3's=3/12×180=45

4's=4/12×180=60

5's=5/12×180=75

Hence, the smallest angle is 45°.

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