Question

Find the measure of the third angle of triangles whose two angles are given 1) 40, 80​

Answer 1

ANSWER ♥️

SUM OF ALL THE ANGLES OF A TRIANGLE = 180°

SO

MEASURE OF THE GIVEN ANGLES = 40,80

NOW

let the third angle be x

180 = 80+ 40 + x

=> 180 = 120 + x

=> x = 180 -120

=> x = 60

=> the measure of third angle is 60.

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Answer 2

Step-by-step explanation:

(sum of all angles of a triangle is 180 degree)

let the third angle > x

so, 180= 40+80+x

180= 120+x

180-120=x ( transposing 120 to LHS)

x=60

so the measure of third angle of the triangle is 60.

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