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Test: Circle- 1


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10 Questions MCQ Test Mathematics for Class 5 | Test: Circle- 1

Test: Circle- 1 for Class 5 2022 is part of Mathematics for Class 5 preparation. The Test: Circle- 1 questions and answers have been prepared according to the Class 5 exam syllabus.The Test: Circle- 1 MCQs are made for Class 5 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Circle- 1 below.
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Test: Circle- 1 - Question 1

Find the radius of the circle below:d = 36ft.

Detailed Solution for Test: Circle- 1 - Question 1

Using the formula:

d = 2 r

Solving for r:

Test: Circle- 1 - Question 2

Which of the following is correct?

Detailed Solution for Test: Circle- 1 - Question 2

We can draw infinite lines that pass through the center of the circle with endpoints on the circumference of the circle. Hence, a circle can have countless number of diameters. 

Test: Circle- 1 - Question 3

Find the diameter of the circle below: r = 8

Detailed Solution for Test: Circle- 1 - Question 3

The diameter is twice the radius:

  d = 2r = 2(8 cm)

  d = 16 cm

Test: Circle- 1 - Question 4

What is an arc?

Detailed Solution for Test: Circle- 1 - Question 4

An arc is a portion of a curve.

Test: Circle- 1 - Question 5

Which segment is the diameter?

Detailed Solution for Test: Circle- 1 - Question 5

A diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle.

Hence, BD is the diameter in the image shown.

Test: Circle- 1 - Question 6

The _____________ of a circle is two times the radius. 

Detailed Solution for Test: Circle- 1 - Question 6

A circle's diameter is equal to twice its radius, or 2r.

Test: Circle- 1 - Question 7

If the area of circle is 100 π square feet, find the radius of the circle.

Detailed Solution for Test: Circle- 1 - Question 7

Using the formula:

A = π r

100π = π r

By cancelling π on both sides, we get:

100 = r

Hence, r = 10 ft.

Test: Circle- 1 - Question 8

A bicycle tire has a diameter of 27 inches. What is the radius?

Detailed Solution for Test: Circle- 1 - Question 8

Using the formula:

d = 2 r

Solving for r:

Test: Circle- 1 - Question 9

Which of the following are collinear points?

Detailed Solution for Test: Circle- 1 - Question 9
  • Collinear points mean the points which lie on the same line or in the same direction.
  • Since, the end points of a diameter and the centre of the circle lie on the same line, they are collinear points.
Test: Circle- 1 - Question 10

Find the circumfrence of the circle whose radius, r = 7 cm

Detailed Solution for Test: Circle- 1 - Question 10

Circumference of a circle whose radius is r is given by 2 π r

Here r=7 cm 

Hence,

Circumference of the circle = 2 π (7)

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