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Oliga [24]
3 years ago
5

PLEASE HELP ME ANWSER THISSS​

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
6 0

Answer:

Step-by-step explanation:

Find the measure of the vertex angle ∠ABD of an isosceles triangle

we know that

An isosceles triangle has two equal sides and two equal angles

In this problem

∠ABD=∠BAD= ----> the angles of the base are equals

Find the measure of the vertex angle

∠ABD= ------> the sum of the internal angles of a triangle is equal to

Step 2

Find the measure of the angle  ∠CBD in the equilateral triangle

we know that

A equilateral triangle has three  equal sides and three equal angles

The measure of the internal angle in a equilateral triangle is

so

∠CBD=

Step 3

Find the measure of the angle ∠ABC

∠ABC=∠ABD+∠DBC

substitute the values

∠ABC=

therefore

the answer is

the measure of the angle ∠ABC is

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Answer:

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Step-by-step explanation:

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storchak [24]

Answer:

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If you need any explanation in it or anything on math you can communicate with me on Whats on this number +201557831028 or in email or face or anything

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