Question

find the value of x

for class 9​

Answer 1

Answer:

Value of x = 115°

Step-by-step explanation:

Hope it helped....

Answer 2

Answer:

Angle ACD = x°

Angle ACD + Angle ACB = 180° [Linear Pair]

x° + Angle ACB = 180°

Angle ACB = 180° - x°

Angle ACB = Angle ABC [Angles opposite to equal sides are equal]

Angle ABC = 180° - x°

Angle ABC + Angle BAC = Angle ACD [Exterior Angle Property]

180° - x° + 50° = x

230° = x° + x°

2x° = 230°

x° = 230° /2

x° = 115°