Question

please answer as soon as possible!!!

the third angle of a triangle is the same size as the first. the second angle is 4 times the third. find the measure of the angles

Answer 1

let the first angle be X
second angle be 4X
third angle be X
then X+X+4X=180
6X=180
X=180÷6
X=30


so first angle and third angle =30
third angle=30×4=120

Answer 2

#ANSWER#

Given the third angle of a triangle is the same size as the first.
The second angle is 4 times the third.

Let the first angle be x

Then the third angle will be x (given that 3rd angle=1st angle)

so the second angle be 4x

Forming the equation according to the question

we have

x + 4x + x = 180°( Sum of all angles of interior angles of a triangle is 180°)

6x = 180°

x = (180/6)°

x = 30°

So the first angle= 30°

Second angle = 4x = 4× 30 = 120°

Third angle = First angle = x = 30°


Thank you

@Be Brainly