What is the main focus of the lesson on isosceles triangles?

Isosceles Triangle Concepts and Properties

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Thomas White
FREE Resource
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11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Studying right triangles
Learning about equilateral triangles
Exploring transformations
Understanding congruent angles
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is an equilateral triangle related to an isosceles triangle?
It has no equal sides
It is a type of isosceles triangle
It is unrelated
It is a type of right triangle
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which angles are congruent in an isosceles triangle with a bisected vertex angle?
Adjacent angles
Base angles
Exterior angles
Vertex angles
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when triangle BCD is reflected across Ray BD?
It remains unchanged
It becomes an equilateral triangle
It becomes a right triangle
It maps onto triangle BAD
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are triangles BCD and BAD congruent?
They have the same color
They have the same area
They have the same perimeter
They have the same size and shape
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between Ray BD and base AC in an isosceles triangle?
Ray BD is the angle bisector of AC
Ray BD is parallel to AC
Ray BD is the perpendicular bisector of AC
Ray BD is the median of AC
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sum of the angles in any triangle?
360 degrees
90 degrees
180 degrees
270 degrees
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