
Understanding Concentric Circles and Chords

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard
Jennifer Brown
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the length of the chord AB in the problem involving concentric circles?
8 units
32 units
16 units
24 units
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which theorem is used to relate the radii and the chord in the problem?
Thales' theorem
Fermat's Last Theorem
Pythagorean theorem
Euclid's theorem
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between a tangent and a radius at the point of tangency?
They form an acute angle
They are perpendicular
They are equal
They are parallel
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the area of the shaded region calculated in terms of the chord length?
By subtracting the chord length from the radius and multiplying by pi
By adding the chord length to the radius and multiplying by pi
By dividing the chord length by two, squaring it, and multiplying by pi
By multiplying the chord length by pi
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final area of the shaded region in terms of pi?
32 pi
64 pi
48 pi
80 pi
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