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I NEED THIS DONE ASAP
What is the measure of BAC

I NEED THIS DONE ASAP What is the measure of BAC-example-1
User Jeffrey Basurto
by
2.6k points

2 Answers

14 votes
14 votes

Answer:

<BAC = 70°

Explanation:

from the picture it's an isosceles triangle,

In an isosceles triangle, if two sides are equal, then the angles opposite to the two sides correspond to each other and are also always equal.

the sum of the interior angles is 180°

so

40 + x + x = 180°

2x = 180 - 40

2x = 140

x = 140 : 2

x = 70

-----------------------------

check

70 + 70 + 40 = 180°

the answer is good

User Scotthenninger
by
2.9k points
15 votes
15 votes

Answer: x = 70

Explanation:

The sum of the interior angles in a triangle is 180

180 - 40 = 2x
140 = 2x
70 = x

User MatMouth
by
2.9k points