General
General
Easy
Question
Hint:
- the base angle theorem states that if the sides of a triangle are congruent then the angles opposite these sides are congruent.
The correct answer is: AC = 15in
- We have been given a diagram of triangle in the question named ABC we have also been given ∠ABC = 40 and ∠ACB = 40
- We have to Find 𝑚∠𝐴 and 𝐴𝐶.
Step 1 of 1:
We have given triangle
Since,
And we know that sum of all angles of a triangle is 1800
So,
Step 2 of 2:
Since,
By, Converse of base angle theorem,
AB = AC
So,
AC = 15 in.
Since,
And we know that sum of all angles of a triangle is 1800
So,
Step 2 of 2:
Since,
By, Converse of base angle theorem,
So,
