Question

The triangle had interiror angle has 3x+1 and exterior angle has 4+1x find the third angle if the angle is 180°​

Answer 1

Answer:

Let a AABC

Let the exterior angle C = 112°

Now interior angle C= 68°

Sum of three angles of A =180°

Now, angle A: angle B = 3/4

So let angle A = 3x

angle B = 4x

Now using (1)

3x + 4x + 68 degrees = 180 degrees

7x + 68 degrees = 180 degrees

7x = 112 degrees

x = 16

Now angles are A=48"

B=64*

C=68"~

hope it right