Area of Triangles and Parallelograms Answers
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The vertex angle of an isosceles triangle measures 40°. What is the measure of a base angle?
A
40°B
70°C
100°D
140°2
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Consider the diagram and proof by contradiction.Given: △ABC with AB ≅ AC
A
AB ≠ ACB
∠B ≅ ∠CC
ABC is not a triangleD
∠A ≅ ∠B ≅ ∠C3
Triangle SQT is isosceles. The measure of angle STQ is 48°.
A
24°B
38°C
48°D
76°4
Triangle ABC is an isosceles right triangle. What is the measure of one base angle?
A
30ºB
45ºC
60ºD
90º5
What is always true about the angles of an isosceles triangle?
A
All three angles are congruent.B
At least two of the angles are congruent.C
The vertex angle is a right angle.D
The vertex angle is obtuse.6
Right triangle ABC is isosceles and point M is the midpoint of the hypotenuse.
A
It is congruent to triangle ABC.B
It is an obtuse triangle.C
It is an isosceles right triangle.D
It is a scalene triangle.7
Isosceles triangle ABC has a perimeter of 96 centimeters. The base of the triangle is and measures 24 centimeters.What is the measure of ?
A
12 cmB
36 cmC
48 cmD
72 cm8
Triangle ABC is isosceles.
A
It is twice the measure of angle A.B
It is twice the measure of angle C.C
It is equal to the measure of angle A.D
It is equal to the measure of angle C.
10
Consider the diagram and proof by contradiction.Given: △ABC with ∠B ≅ ∠CProve: AB ≅ AC
A
converse of the isosceles triangle theoremB
substitutionC
definition of congruencyD
converse of the triangle parts relationship theoremDid you find these answers helpful?
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