Quiz Discussion

Title: Circles

Grade: 8-a Lesson: S2-L6

Explanation: Hello students, let us discuss few problems on this topic with steps and answers provided for each problem.

Quiz: Discussion in Class

Problem Id Description Image Answer

Steps 1

The diameter of a cart wheel is 11.2 m. Find the distance traveled when it completes 80 revolutions.

g1

2816m

Steps 2

The diameter of a circular park is 126 m. Find the cost of fencing it at $6 per meter.

g2

$2376

Steps 3

A tin of paint has a diameter of 9.5cm. What is the area of the top of the tin?

g3

70.84 cm

Steps 4

Mrs Joe’s garden is made up of 4 squares and 2 semicircles as shown below. Square has an area of 7 square meters. Find the total area of the garden.

g4

87.465 square meters

Steps 5

A circular garden with a diameter of 20 meters is surrounded by a walkway of width 2 meter. Find the area of the walkway (shaded part).

g5

263.76 square meters


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