Question

The angle of a triangle are (x+10)degree , (x+40)degree, and (2x - 30) degree.
find the measure of all the angles. ​

Answer 1

Step-by-step explanation:

Since, the sum of measure of all three angles of triangle is 180,

x+10 + x+40 + 2x-30 = 180

4x+20 = 180

4x = 180-20

4x = 160

x = $\frac{160}{4}$ = 40

as x = 40,

first angle = (x+10) = (40+10) = 50

second angle = (x+40) = (40+40) = 80

third angle = (2x-30) = (2×40-30) = 50