Question

In a triangle ABC,a measure of angle A is 40degree less than angle B. And 50degree less than angleC. Find angle A.​

Answer 1

Answer:

A+B+C=180. (SUN OF TRIANGLE)

According to question

A=B-40

B=A+40

C=A+50

A+B+C=180

A+A+40+A+50=180

3A+90=180

3A=90

A=30

Answer 2

Answer:

PARTH ,HERE`S YOUR ANSWER

Let angle A = x

Then b =x-40

And c = x-50

x+x-40+x-50= 180

3x - 90 = 180 (WE GET 90 BY ADDING 40 AND 50)

x = 90/3

x = 30

HOPE IT HELPS YOU

REGARDS,

A BRAINLY MATE