Question

find the value of x in the triangle 20,12,x​

Answer 1

$\huge\bold\red{Answer}$

Given that :-

The angles of triangles are 20 , 12 , x

We have to find the value of x -

A/Q

The sum of the triangle = 180°

20 + 12 + x = 180°

32 + x = 180°

x = 180 - 32

x = 148

Hence , the value of x = 148°

Answer 2

Answer:

The correct option is A

20

∘

In any triangle, we know that the sum of all the angles of a triangle is equal to

180

∘

. (Angle Sum Property)

⇒

4

x

+

2

x

+

3

x

=

180

∘

⇒

9

x

=

180

∘

⇒

x

=

20

∘

∴

the value of x in the given triangle is

20

∘

.