Question

In the given figure, find the measure of 21, 22, 23.
P
1
136°
2
31
R
1049
TA​

Answer 1

Answer:

$\fbox \purple{solution}$

$\to \: 104 + angle \: 2 = 180 \: (\blue{adjacent \: angles}) \\ \to angle \: 2 = 180 - 104 = 76$

$\to \: angle \: 3 + 136 = 180 \: ( \pink{adjacent \: angles}) \\ \to \: angle \: 3 = 180 - 136 = 44$

$\to \: angle \: 1 + angle \: 2 = 136\: ( \blue{exterior \: angle \: property}) \\ \to \: angle \: 1 = 136 - 76 = 60$

VERIFICATION-

⛄sum of all angles in a triangle is 180°

angle 1+ angle 2+ angle 3 = 180°

60° + 76° + 44° = 180°

_____________________________________