Question

find the value of x
PLZZ give me the answer​

Answer 1

Answer:

Using the pic I have given in attachment, let's follow the steps to find the value of x.

To find:

The value of x.

_______________________

/_A = /_BAC [By Vertically Opposite Angles]

80° = /_BAC

As we can see, BAC is a triangle. So,

/_B + /_ A + /_C = 180° [ASP of triangle]

45°+80°+x = 180°

125°+x = 180°

x = 180°-125°

x = 55°

Therefore the value of x is 55°.

Answer 2

$\mathtt{\angle 1 = 80° \;\;\;\;\;\; [Vertically \; opposite \; angles]}$

$\mathtt{In \; ∆,}$

$\mathtt {\angle 1 + 45° + x = 180° \;\;\;\; [Sum \: of \: all\; \angle s \; of \; a \; ∆]}$

$\implies \mathtt{80° + 45° + x = 180°}$

$\implies \mathtt{125° + x = 180°}$

$\implies \mathtt{ x = 180°-125°}$

$\implies \mathtt{x = 55°}$