Question

Find the unknown sizes of angles in the following figures.​

Answer 1

Answer:

please refer to the attachment

Answer 2

Answer:

Step-by-step explanation:

Now ,here the big clue is ΔABC is an isosceles triangle.

The equal sides are AC and CB

The angles present in the non equal side are equal that is 2X = Y

Let make the y as X itself to make the calculation easier so Y = 2X

2X + 2X = 120°(Exterior angle property)

4X = 120°

X = 120°/4

X = 30°

2X = 60°

Y = 2X

Y = 60°

Hope this will help you