Question

if angles of triangle are (x-10),(x-20) and x-30) then find the value of x and three angles of triangle
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Answer 1

Answer:

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Step-by-step explanation:

x-10+x-20+x-30 = 180

x+x+x-10-20-30 = 180

3x - 60 = 180

3x = 180 + 60

3x = 240

x = 240 / 3

x = 80

1 angle = 80 - 10 = 70 degrees

2 angle = 80 - 20 = 60 degrees

3 angle = 80 - 30 = 50 degrees