Question

find the unknown angles marked in each of the following figures.

Answer 1

HEY MATE!

YOUR ANSWER...

According to angle sum property, sum of all angles of a triangle is 180.
So here,

$90 + 3x + 2x = 180$

$90 + 5x = 180$

$5x = 180 - 90$

$5x = 90$

$x = \: \frac{90}{5}$

Therefore,

$x = 18$

Angle L=3x=3×18=54
Angle N=2x=2×18=36.

HOPE IT HELPS!
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Answer 2

We know that sum of all angle make 180°
So,
LMN+MLN+LNM=180°
90+3x+2x=180
5x=180-90
5x=90
X=90/5
X=18

3x=3*18=54
2x=2*18=36