Question

in a triangle ABC ,a = x ,B = y and C= A+ B if 4y-3x=10 find the measure of all angles of the triangle​

Answer 1

Answer:

A=40,B=50,C=90

Step-by-step explanation:

in triangle ABC,

A=x

B=y

C=A+B=x+y

the sum of all the angles of triangle is 180

A+B+c=180

x+y+x+y=180

2x+2y=180

x+y=90 (equations 1)

multiplying eqn 1 by 4 we get

4x+4y=360

4x-3y =10 (given)

-. +. -

_____________

7y=350

y=50

x+y=90

x=90-50

x=40

A=x=40

B=y=50

C=x+y=90