Question

(8)The measures of two angles of a triangle are 60° and 40°, find the measure of the third angle. ​

Answer 1

Measure of first 2 angles: 60° and 40°
Let us take measure of third angle as x
x + 60°+ 40° = 180° (angle sum property)
Therefore measure of third angle =
180° - (60°+40°) = 180° - 100°
= 80°
Therefore measure of third angle = 80°

Answer 2

Answer:

angle a= 60

angle b= 40

angle c = 80  

Step-by-step explanation:

angle a + angle b + angle c = 180 ( angle sum property of triangle )

60+40+angle c = 180

100 + angle c = 180

angle c = 180 - 100

angle c = 80 degree

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