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An exterior angle at the base of an isosceles triangle measures 130 find the measure of the vertex angle?
80 degrees.
What is the measure of the vertex angle of an isosceles triangle if one of its base angles measures 53?
If your "53" is in degrees, then the vertex angle is 74 degrees.
What is the measure of a vertex angle of an isosceles triangle if the measure of an exterior at the base is 100 degrees?
20 degrees and the two equal angles will be 80 degrees each
If the measures of two angles of an isosceles triangle are 54 degrees and 63 degrees what is measure of the third angle?
The total internal angles of a triangle always equal 180 degrees. Therefore, the third angle of this triangle must be 180 - 54 - 63 = 63. Since this value is the same as one of the stated sides, the triangle is indeed isosceles.
What type of triangle has an angle of 120 degrees and two angles of 30 degrees?
An isosceles triangle
What is the measure of the base angles of an isosceles triangle whose vertex angle has a measure of 50 degrees?
130 degrees is the measure of the base angles of an isosceles triangle whose vertex has a measure of 50 degrees.
The exterior angle of a base angle in an isosceles triangle is 100 degrees What is the measure of the vertex angle?
20 degrees
What is the measure of the vertex angle of an isosceles triangle if one of its base angle measure 50?
80 degrees
5 If the non-base angle of an isosceles triangle has a measure of 70 degrees what is the measure of each base angle?
55 degrees
What is the measure of a base angle of an isosceles triangle if its vertex angle measures 65?
57.5 degrees
What is the measure of the largest exterior angle of an isosceles right triangle?
135 degrees.
What is the total angle measure of isosceles triangle?
The sum of all three interior angles of any triangle, isosceles or not, is 180 degrees.
If the measure of one angle of an isosceles triangle is 92 degrees what is the measure of either of the remaining angles?
44 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
If the non-base angle of an isosceles triangle has a measure of 78 degrees what is the measure of each base angle?
51 degees
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 the measurement of the vertex angle of an isosceles triangle is the measure of one of its base angle is 42?
The vertex angle of an isosceles triangle is equal to the measure of each of its base angles. Therefore, if one of the base angles measures 42 degrees, then the vertex angle also measures 42 degrees.
