Question

The value of x in the following figure is
(4) 100
(3) 60°
(1) 120°
(2)180°​

Answer 1

Answer:

120°

as it is equilateral triangle all the angles are =60°

exterior angle = sum of two opposite interior angles

therefore 60°+60°=120°

Answer 2

Answer:

the value of x is 120 degree here

Step-by-step explanation:

this is because the triangle is an equilateral triangle and each angle of an equilateral triangle is of 60 degree

now, sum of angle on a line is 180 degree

so, 60+x=180

x=180-60=120 degree

this question can also be solved by the exterior angle property which suggests that the measure of any angle in the exterior of triangle is equal to the sum of opposite two angles

so, x=60+60

x=120 degrees

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