Question

In ∆ABC, AB = AC, ∠A = (x + 20⁰) and ∠B = 1/4th of ∠A. Find the measure of ∠A. ​

Answer 1

Answer:

measurements are angle 80

Answer 2

Answer:

Hope it will helpfully to u

Step-by-step explanation:

Let the angle c be x

we know that sum of angles of a triangle is 180 degree

angle a +angle b+angle c= 180 degree

1/4+1/4+x=180 degree

x+x+4x/4=180 degree

6x/4=180degree

x=180×4/6

x=120degree

angle a=x+20=120+20=140