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.
80 degrees.
If your "53" is in degrees, then the vertex angle is 74 degrees.
It is an isosceles triangle
That's an isosceles triangle.
40
(180 - 38)/2 = 71 degrees (base angles of an isosceles triangle are congruent).
63 degrees
57.5 degrees
84 degrees
84 degrees
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.
80 degrees.
If your "53" is in degrees, then the vertex angle is 74 degrees.
40 degrees each
130 degrees is the measure of the base angles of an isosceles triangle whose vertex has a measure of 50 degrees.
Its 2 equal base angles will each measure 65 degrees
Each base angle is 62.5 degrees