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Earn +20 ptsQ: How many degrees does a triangle measure?
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Continue Learning about Geometry
How many degrees does each angle of an equilateral triangle measure?
Each of the 3 angles measures 60 degrees. There are 180 degrees in a triangle.
A triangle has one angle of 80 degrees an another of 60 degrees how many degrees must there be in the third angle?
The sum of the angles of a triangle is 180 degrees. So we have: 80 + 60 = 140 degrees, the sum of the two angles of the triangle 180 - 140 = 40 degrees, the measure of the third angle. Thus the measure of the third angle is 40 degrees.
A triangle that measures 90 degrees?
Triangles measure 180 degrees. A triangle that has one 90 degree angle is known as a right triangle.
Two angles of a triangle measure seventy four degrees and forty one degrees. What is the measure of the missing angle?
Since the sum of the internal angles of a plane triangle is 180 degrees, the measure of the missing angle is 65 degrees. 180 - 74 - 41 = 65 degrees.
What is the measure of the base angle of an isosceles triangle if the measure of the vertex angle is 42 degrees and the two congruent sides each measure 21 units?
If it is an isosceles triangle then the base angles must be equal angles of 69 degrees because there are 180 degrees in a triangle and 42+69+69 = 180 degrees
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