Question

13. The angles of a triangle are xº, (x + 40) and
(x - 10). Find the angles.​

Answer 1

Answer:

We know that the sum of rhe angels of a triangle will be 180

So, x+x+40+x-10=180

3x+30=180

3x=150

x=50

x+40=50+40=90

x-10=50-10=40

So, the angles of the triangle are 50,90 and 40

Answer 2

Answer:

By angle sum property

Step-by-step explanation:

a + b + c = 180 degrees

x + x+ 40 + x - 10 = 180

2x + 40 + x-10 = 180

3x + 30 = 180

3x = 180 - 30

3x = 150

x= 150/3

x=50

now,

a = 50

b = 90

c= 40