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Area and circumference of circles

Area and circumference of circles

Assessment

Flashcard

Mathematics

7th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the formula to calculate the radius of a circle if the diameter is known?

Back

Radius = Diameter / 2

2.

FLASHCARD QUESTION

Front

If the radius of a circle is 10 ft, what is the formula to find the diameter?

Back

Diameter = 2 * Radius

3.

FLASHCARD QUESTION

Front

Define the term 'diameter' in relation to a circle.

Back

The diameter is the longest distance across the circle, passing through the center, and is twice the length of the radius.

4.

FLASHCARD QUESTION

Front

What is the formula for calculating the circumference of a circle?

Back

Circumference = π * Diameter or Circumference = 2 * π * Radius

5.

FLASHCARD QUESTION

Front

How do you calculate the circumference of a circle with a radius of 6 cm?

Back

Circumference = 2 * π * 6 cm ≈ 37.70 cm.

6.

FLASHCARD QUESTION

Front

What is the relationship between the radius and diameter of a circle?

Back

The diameter is always twice the length of the radius.

7.

FLASHCARD QUESTION

Front

What is the formula for calculating the area of a circle?

Back

Area = π * Radius²

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