Circle Master Quiz

Froggy Jumps

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Sobre esta actividad

Test your circle knowledge.

Creada por

Mahesh S C

India

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Froggy Jumps Circle Master QuizVersión en línea Test your circle knowledge. por Mahesh S C 1 What is the standard formula for circumference of a circle with radius r? a C = πd b C = πr^2 c C = 2πr 2 What is the formula for the area of a circle with radius r? a A = πr^2 b A = πd^2 c A = 2πr 3 Diameter is related to radius by which equation? a d = 2r b r = 2d c d = r/2 4 Arc length L for radius r and central angle θ (in radians) is? a L = 2rθ b L = θ^2 r c L = rθ 5 Area of a circle sector with angle θ (radians) is? a A = (1/2) θ/r^2 b A = (1/2) r^2 θ c A = πr^2/θ 6 A tangent to a circle is perpendicular to what at the point of contact? a The radius drawn to the point of contact b A diameter c The circle's chord at that point 7 Which statement is true about a circle's diameter? a It is the longest chord b It passes through the center but is not a chord c It is shorter than the radius 8 If radius r = 5, what is the circumference? a 10π b 25 c 5π 9 Are all radii of a circle equal in length? a No b Only sometimes c Yes 10 If diameter is 12, what is the circumference? a 24 b 12π c 6π

Froggy Jumps

Circle Master QuizVersión en línea

Test your circle knowledge.

por Mahesh S C

What is the standard formula for circumference of a circle with radius r?

C = πd

C = πr^2

C = 2πr

What is the formula for the area of a circle with radius r?

A = πr^2

A = πd^2

A = 2πr

Diameter is related to radius by which equation?

d = 2r

r = 2d

d = r/2

Arc length L for radius r and central angle θ (in radians) is?

L = 2rθ

L = θ^2 r

L = rθ

Area of a circle sector with angle θ (radians) is?

A = (1/2) θ/r^2

A = (1/2) r^2 θ

A = πr^2/θ

A tangent to a circle is perpendicular to what at the point of contact?

The radius drawn to the point of contact

A diameter

The circle's chord at that point

Which statement is true about a circle's diameter?

It is the longest chord

It passes through the center but is not a chord

It is shorter than the radius

If radius r = 5, what is the circumference?

10π

5π

Are all radii of a circle equal in length?

Only sometimes

Yes

If diameter is 12, what is the circumference?

12π

6π

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Circle Master Quiz

Froggy Jumps

Sobre esta actividad

Creada por

Descarga la versión para jugar en papel

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Circle Master QuizVersión en línea

por Mahesh S C

What is the standard formula for circumference of a circle with radius r?

What is the formula for the area of a circle with radius r?

Diameter is related to radius by which equation?

Arc length L for radius r and central angle θ (in radians) is?

Area of a circle sector with angle θ (radians) is?

A tangent to a circle is perpendicular to what at the point of contact?

Which statement is true about a circle's diameter?

If radius r = 5, what is the circumference?

Are all radii of a circle equal in length?

If diameter is 12, what is the circumference?

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