Question

If two angles of a triangle are 70° and 30°, then third angle is
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Answer 1

Answer:

Third angle is 80°

explaination-

Let the third angle be X

Sum of all angle of a triangles is 180°

70+30+X= 180

100+X= 180

X= 180-100

X= 80°

Answer 2

Answer

80°

$Let the angle me x</h2><p> x+70°+30°=180°</p><p> x+100°=180°</p><p> x=180°-100°</p><p> x=80°$