Question

in a triangle ABC the measure of angle A is 40 degree less than the measure of Angle B and 50 degree less than that of angle C. find the measure of angle A

Answer 1

let angle A = x
then b =x-40
and c = x-50
then,
x+x-40+x-50= 180
3x - 90 = 180
x = 90/3
x = 30

Answer 2

Answer:

30 degree

Step-by-step explanation:

let angle a be x-40,angle b be x and angle c is angle a+ 50.

angle a+b+c=180

x-40+x+x-40+50=180

you got the equation now solve