Question

3. AABC is an isosceles triangle with AB = AC. If ZB = 40°, what are the measures of
and ZC?
4. The vertical angle of an isosceles triangle is 100°. Find its base angles.

Answer 1

Answer:

Zc too measures 40 degrees becuse the corressponding sides are equal...

Step-by-step explanation:

Answer 2

Step-by-step explanation:

The answers are given below:

3. Here,

ABC is an Isosceles triangle

So, the angles opposite to equal sidws are equal by property

Now,

Angle B = 40 degree

So, Angle C = Angle B = 40 degree ( Ans.)

4. Vertical angle of the triangle = 100 degree

Therefore,

Base angles = 180 - 100/ 2 degree = 80/2 degree = 40 degree ( Ans.)