Question

Find out the valve of x and calculate the following sum

Answer 1

sum of all angles in a triangle is equals to 180°

Step-by-step explanation:

3x+5x+x=180°

9x=180°

x=180/9

x=20°

3x=3×20=60

5x=5×20=100

Therefore,

CHECKING

sum of all angles in a triangle is equals to 180°

X+3X+5X=180°

20+60+100=180°

180°=180°

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