Arc Length Formula and Sector Area Formula Explained!
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Mathematics
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Hard
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4 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for the circumference of a circle with radius 'r'?
C = πr²
C = 2πr
C = πd
C = r²
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for the area of a circle with radius 'r'?
A = 2πr
A = πr
A = πr²
A = 2r
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A circle has a central angle of 120 degrees and a diameter of 24 cm. What is the length of the arc intercepted by this angle?
6π cm
8π cm
12π cm
24π cm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A circle has a radius of 5 cm. A sector of this circle has a central angle of 63 degrees. What is the area of this sector?
(35/8)π cm²
(63/5)π cm²
(25/63)π cm²
(5/360)π cm²
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