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Vertex angle A of isosceles triangle ABC measures 20 degrees more than three times measure of angle B Find angle C?
Wiki User
∙ 16y ago
The vertex angle of an isosceles triangle is the angle opposite the base of the triangle. Therefore, the other two remaining angles of the triangle are congruent. so, in this problem: Let x = m of angle B Let x1 = m of angle C Let 3x + 20 = m of angle A x + x + 3x + 20 = 180 5x + 20 = 180 5x = 160 x = 32 degrees Since angle B and C are congruent, the measure of angle C = 32 degrees.
Wiki User
∙ 16y ago
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What are the measures of the Base angles of an isosceles triangle whose vertex angle has measure of 55?
Each base angle is 62.5 degrees
If the measures of two angles of an isosceles triangle are what is the measure of the third angle?
63
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
What is the measure of the vertex angel of an isosceles triangle if one of its base angles measures 42 degress?
Vertex angle: 180-42-42 = 96 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).
If the measures of two angles of an isosceles triangle are 54 degrees and 63 degrees what is the measure of the third angle?
63 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 vertex angle of an isosceles triangle if one of the base angles measures 48?
84 degrees
What is the measure of the vertex angle of an isosceles triangle if one of its base angles measures 48?
84 degrees
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.
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.
One angle of an isosceles triangle measure 100 degree what are the measures of the other two angles?
40 degrees each
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.
What is the measure of a base angle of an isosceles triangle if its vertex angle measures 50?
Its 2 equal base angles will each measure 65 degrees
What are the measures of the Base angles of an isosceles triangle whose vertex angle has measure of 55?
Each base angle is 62.5 degrees
