Test: Area of Combination of Figures - Class 10 MCQ

Test: Area of Combination of Figures - Class 10 MCQ

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10 Questions MCQ Test Mathematics (Maths) Class 10 - Test: Area of Combination of Figures

Test: Area of Combination of Figures for Class 10 2024 is part of Mathematics (Maths) Class 10 preparation. The Test: Area of Combination of Figures questions and answers have been prepared according to the Class 10 exam syllabus.The Test: Area of Combination of Figures MCQs are made for Class 10 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Area of Combination of Figures below.
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Test: Area of Combination of Figures - Question 1

If a square is inscribed in a circle, then the ratio of their areas is​

Detailed Solution for Test: Area of Combination of Figures - Question 1

Let side of square be x cms inscribed in a circle.

Radius of circle (r) = 1/2(diagonal of square)

Test: Area of Combination of Figures - Question 2

In the given figure, O is the centre of the circle, and AC is its diameter. Another circle with AB as diameter is drawn. If AC = 54 cm and BC = 10 cm, the area of shaded portion will be  ​

Detailed Solution for Test: Area of Combination of Figures - Question 2

Area of the bigger circle= πR2= 22/7 * 27 * 27=2291 (approx)
Diameter of the smaller circle=54-10=44
Area of the smaller circle= πr2=22/7 * 22 * 22=1521 (approx)
Area of the shaded region=Area of the bigger circle-Area of the smaller circle
= 2291-1521=770 cm2

Test: Area of Combination of Figures - Question 3

The perimeter of the given figure is

Detailed Solution for Test: Area of Combination of Figures - Question 3

Perimeter is the boundary of the figure
So we have two semicircles of radius 14cm which makes one complete circle. Also there are two semicircles of radius 7 cm which makes one circle.
So perimeter= 2πR+2πr=2(R+r)=2*22/7(14+7)=22*6=132cm

Test: Area of Combination of Figures - Question 4

If PQRS is a square of side 14 cm and PAQ and SAR are semi-circles, then the area of the shaded region is

Test: Area of Combination of Figures - Question 5

What is the area of the square inscribed in a circle with a circumference of 18.84 cm?​

Detailed Solution for Test: Area of Combination of Figures - Question 5

Test: Area of Combination of Figures - Question 6

A park is in the form of a rectangle 120m by 90 m. At the centre of the park there is a circular lawn as shown in the figure. If the area of the park excluding the lawn is 2950 m2, then the radius of the circular lawn will be

Detailed Solution for Test: Area of Combination of Figures - Question 6

Solution :- Area of rec. park=(120×90)m²=10800m²

Area of rec. park excluding lawn=2950m²

Area of circular lawn=(10800 - 2950)m²

=7850m²

Let the radius be = r

7850/3.14 = 3.14r²/3.14

→2500 = r²

→√2500 = √r²

→50 = r

→r = 50

Test: Area of Combination of Figures - Question 7

Calculate the area of the designed region in the given figure common between the two quadrants of circles of radius 8 cm each.

Test: Area of Combination of Figures - Question 8

From a circular sheet of paper with a radius 20 cm, four circles of radius 5 cm each are cut out. What is the ratio of the uncut to the cut portion?​

Detailed Solution for Test: Area of Combination of Figures - Question 8

Four circles of radius 5 cm are cut out.
Area cut = 4*(π52) = 100π
Total area of circular sheet = π(20)2 = 400π
Area uncut = 300 π
The ratio of uncut to cut portion is 3 : 1

Test: Area of Combination of Figures - Question 9

A momento is made as shown in the figure. Its base, shade is to be silver plated from the front at the rate of rs 20 per cm2. What is the total cost of silver plating?

Test: Area of Combination of Figures - Question 10

In given figure, a circle of radius 7.5cm is inscribed in a square, the remaining area of the square is

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Mathematics (Maths) Class 10

120 videos|463 docs|105 tests