Identifying Radius/Diameter
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the definition of a radius?
Back
The radius is the distance from the center of a circle to any point on its circumference.
2.
FLASHCARD QUESTION
Front
What is the definition of a diameter?
Back
The diameter is the distance across a circle through its center, equal to twice the radius.
Tags
CCSS.HSG.C.A.2
3.
FLASHCARD QUESTION
Front
How do you calculate the diameter if you know the radius?
Back
Diameter = 2 × Radius.
Tags
CCSS.7.G.B.4
4.
FLASHCARD QUESTION
Front
How do you calculate the radius if you know the diameter?
Back
Radius = Diameter ÷ 2.
Tags
CCSS.7.G.B.4
5.
FLASHCARD QUESTION
Front
What is the formula for the circumference of a circle using diameter?
Back
Circumference (C) = π × Diameter (d).
Tags
CCSS.7.G.B.4
6.
FLASHCARD QUESTION
Front
What is the formula for the circumference of a circle using radius?
Back
Circumference (C) = 2 × π × Radius (r).
Tags
CCSS.7.G.B.4
7.
FLASHCARD QUESTION
Front
If the radius of a circle is 5 cm, what is the diameter?
Back
Diameter = 2 × 5 cm = 10 cm.
Tags
CCSS.7.G.B.4
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