
Exploring Isosceles and Equilateral Triangles

Interactive Video
•
Mathematics
•
6th - 10th Grade
•
Hard
+2
Standards-aligned

Ethan Morris
FREE Resource
Standards-aligned
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If segment AB is congruent to segment BC in a triangle, which angles are congruent?
Angle ACB and Angle ABC
Angle BAC and Angle BCA
Angle ABC and Angle BAC
Angle ACB and Angle BAC
Tags
CCSS.8.G.A.5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the converse of the isosceles triangle theorem?
If a triangle has a right angle, then it is a right triangle.
If a triangle is equilateral, then all angles are 60 degrees.
If two sides of a triangle are congruent, then the angles opposite those sides are congruent.
If two angles of a triangle are congruent, then the sides opposite those angles are congruent.
Tags
CCSS.HSG.CO.C.9
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example with the architect designing a park, if one angle is 50 degrees, what are the measures of the other two angles?
65 degrees each
50 degrees each
60 degrees each
70 degrees each
Tags
CCSS.8.G.A.5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Using the isosceles triangle theorem, if the total degrees in a triangle is 180 and one angle is 50 degrees, what is the equation to find the other two angles?
180 = 50 + x + x
180 = 50 + 2x
180 = 50 + x
180 = 2x + 50
Tags
CCSS.HSG.CO.C.9
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When solving for side lengths using the converse of the isosceles triangle theorem, what equation would you set up if X + 20 equals 8X divided by 3?
3(X + 20) = 8X
3X + 20 = 8X
X + 20 = 8X / 3
X + 20 = 3(8X)
Tags
CCSS.HSG.CO.C.9
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a line bisects the vertex angle of an isosceles triangle, what does it also bisect?
The opposite side at a 90-degree angle
The base angles
The entire triangle
The hypotenuse
Tags
CCSS.HSG.CO.C.9
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example with the prefabricated house, what theorem is used to determine if the house can pass under a 17-foot bridge?
Isosceles triangle theorem
Converse of the isosceles triangle theorem
Equilateral triangle theorem
Pythagorean theorem
Tags
CCSS.8.G.B.8
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