2 years ago

What is the measure of the vertex angle of an isosceles triangle if one of its base angles measures 42°?

Mathematics

1 answer:

blsea [12.9K]2 years ago

3 0

Answer:

96 degrees

Step-by-step explanation:

you have two angles that each measure 42 degrees, giving you 84 degrees combined

there are 180 degrees in a triangle, therefore the vertex angle is equal to 180 minus 84, or 96 degrees

check:

42 + 42 + 96 = 180

180 = 180

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