Question

5. Find the measure of angle BAC. Hint: What is the sum of the measures of the vertex angles of the nine congruent isosceles triangles?
6. Triangle ABC is an isosceles triangle. Find the measure of each base angle.
7. Use the base angles of triangle ABC to find the measure of angle CBD.

Answer 1

Explanation:
We know that an isosceles triangle is composed of a vertex angle and two base angles. The base angles are congruent to each other. We also know that the sum of a triangle's angles is
180
degrees.

Our first thing to do is subtract
50
from
180
. we are left with
130
degrees for both base angles.

We divide
130
by
2
and get
65
degrees. That means that each base angle is
65
degrees. We can check our work by adding all angle measures together.

Answer 2

i searched it up btw wasn't my own answer if u want the link i could give u it

Answer 3

can you give me the link plz

Answer 4

https://socratic.org/questions/what-is-the-measure-of-a-base-angle-of-an-isosceles-triangle-if-its-vertex-angle#188212