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Well if it has 180 degrees over all, and the two base angles have to be congruent, then the equation is 180-120=2x or each base angle is 30 degrees.

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Q: The obtuse angle of an isosceles triangle measures 120 degrees write and solve an equation to find the measure of the base angles?
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What type of triangle has an angle that measures 120 degrees and an angle that measures thirty degrees for kids?

It is an obtuse angled isosceles triangle.It is an obtuse angled isosceles triangle.It is an obtuse angled isosceles triangle.It is an obtuse angled isosceles triangle.


An isosceles triangle that is not an equilateral triangle?

It is possible if neither of the angles in the triangle measures to 60 degrees


If one angle of an isosceles triangle measures 60 degrees then the triangle is equilateral?

yes


One angle of an isosceles triangle measures 56 degrees what are the measures of the other two angle?

62 degrees


What are the measures of the base angles of a right isosceles triangle?

45 degrees.


What is the measure of the base angle of an isosceles triangle if the vertex measures 38 degrees?

(180 - 38)/2 = 71 degrees (base angles of an isosceles triangle are congruent).


What is a triangle that has angles that measures 45 45 90 degrees?

It is an isosceles triangle. 45 + 45 + 90 = 180 degrees


What type of triangle has an angle that measures 100 degrees and an angle that measures 50 degrees?

A triangle with the third angle that measures 30 degrees.This triangle is not isosceles nor equilateral but has one obtuse angle.


How do you find the measures of the angles in a right isosceles triangle?

If a triangle is an isosceles triangle as well as being a right-angled triangle, the size of the two angles (that are not right angles) are 45 degrees.


A triangle that measures 45 45 90 degrees is?

isosceles right angle traingle


What are the measures of all the angles in an isosceles right triangle?

They are: 45, 45 and 90 degrees


What type of triangle has an angle that measures 120 degrees and an angle that measures thirty degrees?

An isosceles triangle, because the angles of a triangle add up to 180 and you already know that one angle measures 120 degrees, the other is 30, and so the unknown angle must also be 30 degrees. Since two of the angles are the same, two of the sides are going to be the same, making it an isosceles triangle.