Question

two angel of a triangle are of measure 60° and 75° . find the third angle .​

Answer 1

Answer:

$\sf \: first \: angel \: of \: triangle=60 {}^{0}$

$\sf \: second \: angel \: of \: triangle=75 {}^{0}$

$\huge\underline\mathrm\purple {therefore}$

$\sf18{0}^{0}=60 {}^{0} + 75 {}^{0} + 3rd \: angle$

$\sf180=135 {}^{0} + 3rd \: angel$

$\sf45=3rd \: angel$

$\sf\underline\mathrm\purple {: \: measure \: of \: 3rd \: angel \: of \: triangel \:= \: 45 {}^{0} }$