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Rainbow [258]
3 years ago
12

What is the measure of a base angle of an isosceles triangle if its vertex angle measures 40°?

Mathematics
2 answers:
GREYUIT [131]3 years ago
5 0

Answer:

The Answer Is A. edge 2020

Step-by-step explanation:

Brilliant_brown [7]3 years ago
4 0
Hello,
The sum of the angles or any triangle is always going to be 180°
So if the vertex angle is 40°, then each base angle is:
180 = 40 + 2x
x = (180 - 40) / 2
x = 70°

The answer is A.

Bye :-)
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