Question

Two angles of a triangle are 50° and 76°. Find the ratio of measure of the third angle to the sum of the first two angles.

Answer 1

Hi friend ,

let the third angle be x.

50°+76°+x = 180° ( angle sum property)
126°+x = 180°
x = 180-126
x = 54°

The sum of first two angle = 50+76
= 126

Ratio:
Third angle : sum of first two angles
54:126
= 3:7

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Hope this helped u...