Question

find the value of x in the following figure ​

Answer 1

Answer:

b

180-120=60

in triangle sum of all angles = 180

then according to question

90 + 60 + X = 180

150 + X = 180

X = 180-150

X = 30

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Answer 2

Step-by-step explanation:

a)

the triangle is isosceles right angled, since two sides are same and, both angles are also equal,

let, these angles be ‘h’.

sum of measure of angles of triangle is 180°.

therefore,

h+h+90 = 180

2h+90 = 180

2h = 180-90

2h = 90

h = 45.

Now,

x = 45+45 ...(exterior angle property)

therefore x = 90°

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