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Q: 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?

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44 degrees

In the equilateral triangle, all the sides are the same length and all the angles are the same size (congruent). Since the sum of the angles of a triangle is always 180 degrees, we can figure out the measure of the angles of an equilateral triangle.Another Answer:-An isosceles triangle has 2 equal base angles plus another angle and the 3 interior angles add up to 180 degrees.

55 degrees

If the vertex of an isosceles triangle has a measure of 70° what is the measure of one base angleANSWER:Isosceles = 2 legs, 1 vertex, 1 baseTriangle = 180°if its vertex measure 70° , 1 leg ____? + 1 leg____? =180° and all isosceles triangle has congruent legs.180°- 70°=110° then 110° divided by 2 =55°=vertex of an isosceles triangle measure 70° and its 2 legs measure 55°

30o

Related questions

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

congruent/equivalent in measure

There is no exact measure, but 2 sides are congruent which means that 2 angles are congruent.

A scalene triangle. In a scalene triangle, there are no congruent sides or angles. In an isosceles triangle, at least two congruent sides and angles. In an equilateral triangle, all three sides and angles are congruent, with angles that always measure sixty degrees. Note: an equilateral triangle also classifies as an isosceles triangle, as it meets the definition of an isosceles triangle mentioned above.

130 degrees is the measure of the base angles of an isosceles triangle whose vertex has a measure of 50 degrees.

45°

An equilateral triangle is a special isosceles triangle in which all three sides are congruent. Equilateral triangles are also equiangular, which means all three angles are congruent. The measure of each angle is 60 degrees.

It is an isosceles triangle

In all triangles, the angles always measure up 180 degrees. In an isosceles triangle two of the angles are equal.

The three interior angles measure 45, 45 and 90 degrees.

A right triangle. Also an isosceles triangle.

That's an isosceles triangle.

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