Question

find the the value of x the angles of triangle are (x-40),(x-20),(x-30)

Answer 1

Answer:

130,110,120

Step-by-step explanation:

Answer 2

Answer:

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Step-by-step explanation:

Sum of angles of a triangle is 180°

the angles are (x-40) , (x-20) and (x - 30).

Sum = (x-40) + (x-20) + (x-30) = 180

⇒x-40 + x-20 + x-30 = 180

⇒ 3x - 90 = 180

⇒ 3x = 180+90

⇒ 3x = 270

⇒ x = 90

Angles are:

x-40 = 90 - 40 = 50

x - 20 = 90 - 20 = 70

x - 30 = 90 - 30 = 60