
Understanding Right Triangles in Circles

Interactive Video
•
Mathematics
•
8th - 12th Grade
•
Hard
+3
Standards-aligned

Ethan Morris
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between the diameter of a circle and a triangle formed with it as one side?
The triangle is always a right triangle.
The triangle is always scalene.
The triangle is always equilateral.
The triangle is always isosceles.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an inscribed angle in a circle?
An angle formed by a diameter and a chord.
An angle formed by a tangent and a chord.
An angle formed by two chords.
An angle formed by two radii.
Tags
CCSS.HSG.C.A.2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a central angle compare to an inscribed angle subtending the same arc?
The central angle is equal to the inscribed angle.
The central angle is half the inscribed angle.
The central angle is twice the inscribed angle.
The central angle is unrelated to the inscribed angle.
Tags
CCSS.8.G.A.5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an isosceles triangle, if the top angle is 2theta, what is the expression for the base angles?
Each base angle is theta.
Each base angle is 90 - theta.
Each base angle is 180 - 2theta.
Each base angle is 2theta.
Tags
CCSS.8.G.A.5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sum of angles in a triangle?
270 degrees
360 degrees
180 degrees
90 degrees
Tags
CCSS.HSG.C.A.2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the angle opposite the diameter in a triangle inscribed in a circle?
It is always an acute angle.
It is always an obtuse angle.
It is always a right angle.
It is always a straight angle.
Tags
CCSS.2.G.A.1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of triangle is formed when one side is the diameter and the opposite angle is on the circumference?
Equilateral triangle
Isosceles triangle
Scalene triangle
Right triangle
Tags
CCSS.4.MD.C.5B
CCSS.HSG.CO.A.1
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