Question

09. In the given figure, find x.
c
(2x + 15)
6 + 10)
(3x
+ 5)
9
>B​

Answer 1

Refer to the above attachment..

So the value of X = 25

THIS I REMOVED BY THE ANGLE'S ADDITIONAL POSTULATE OF TRIANGLE WHICH IS 180°

Answer 2

$\textbf{\huge{Answer}}$

$sum \: of \: all \: the \: interior \: angles \: of \: a \: triangle = 180 \: degree. \\ \\ (x + 10) + (3x + 5) + (2x + 15) = 180 \\ 6x + 30 = 180 \\ 6x = 180 - 30 \\ 6x = 150 \\ x = \frac{150}{6} \\ x = 25 \\ \\ (x + 10)degree = 25 + 10 = 35 \: degree \\ (3x + 5)degree = 3 \times 25 + 5 = 80 \: degree \\ (2x + 15)degree = 2 \times 25 + 15 = 65 \: degree$