Question

Q-4. The angles of a triangle are (x-40)˚, (x-20)˚ and (x-30)˚.Find the value of x.

Answer 1

90° is the value of 'x'.

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Answer 2

Step-by-step explanation:

THE ANSWER WILL BE : -

SUM OF ALL ANGLES OF TRIANGLE IS 180° SO,

X-40 + X-20 + X-30 = 180

3X - 90 = 180

3X = 180 + 90

3X =270

X = 270 / 3

X = 90

1st angle = 90 - 40 = 50°

2nd angle = 90 - 20 = 70°

3rd angle = 90 - 30 = 60°

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