Question

If two angels of a triangle measures 45° and 60° find the measure of the third angle​

Answer 1

Answer:

let the other angle be x

Measure of two angles is 45 degree and 60 degree

We know that sum of three angles of a triangle is 180 degree

x+60+45=180

x+105=180

x=180-105

x=75

Note:Give degree sign over 45,60,180, 105 and 75

Before all the x give imply sign

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Answer 2

Answer:

let the third angle be x

so,

45*+60*+x*=180

105*+x*=180

x*=180-105

x*=75*

(*) this sign of degrees.........