Suppose each base angle is x degrees.
Then sum of all three [internal] angles is 180 deg
So that 28 + x + x = 180
ie 2x = 152
and then x = 76 deg
The length of the congruent sides is irrelevant.
(180 - 38)/2 = 71 degrees (base angles of an isosceles triangle are congruent).
There is no exact measure, but 2 sides are congruent which means that 2 angles are congruent.
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.
130 degrees is the measure of the base angles of an isosceles triangle whose vertex has a measure of 50 degrees.
45°
(180 - 38)/2 = 71 degrees (base angles of an isosceles triangle are congruent).
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
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.
There is no exact measure, but 2 sides are congruent which means that 2 angles are congruent.
congruent/equivalent in measure
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.
130 degrees is the measure of the base angles of an isosceles triangle whose vertex has a measure of 50 degrees.
45°
right triangle forms a 90 degree angle scalene triangle has no congruent sides isosceles triangle has at least 2 congruent sides equilateral triangle has 3 congruent sides acute triangle all angles measure less than 90 degrees and the obtuse triangle contains 1 obtuse angles.
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.