Question

Find the measure of the third angle if the measures of two angles are 60 and 70 degrees of a triangle
a. 40
b.30
c.60
d.50​

Answer 1

sum of all angles of a triangle=180°

angle 1+angle 2+angle 3=180°

60+70+angle 3=180

130+angle 3=180

angle 3=180-130

angle 3=50°

answer is d)50°

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Answer 2

Question

Find the measure of the third angle if the measures of two angles are 60 and 70 degrees of a triangle

a. 40

b.30

c.60

d.50

$\huge\mathcal\red{AnSwEr:::}$

The measures of two angles = 60°, 70°

Firstly add both of the side's measurement.

(60°+70°= 130°)

And then subtract from 180°

(180°-130°= 50°)

${\mathtt{\red{So~the~answer~is~d.~50°}}}$