Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures

Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures

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APlusTopper.com provides step by step solutions for Selina Concise Mathematics Class 9 ICSE Solutions Chapter 20 Area and Perimeter of Plane Figures. You can download the Selina Concise Mathematics ICSE Solutions for Class 9 with Free PDF download option. Selina Publishers Concise Mathematics for Class 9 ICSE Solutions all questions are solved and explained by expert mathematic teachers as per ICSE board guidelines.

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Selina ICSE Solutions for Class 9 Maths Chapter 20 Area and Perimeter of Plane Figures

Exercise 20(A)

Solution 1:
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Solution 2:
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Solution 3:
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Solution 4:
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Solution 5:
Since the perimeter of the isosceles triangle is 36cm and base is 16cm.
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Solution 6:
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Solution 7:
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Solution 8:
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Solution 9:
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Solution 10:
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Solution 11:
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Solution 12:
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Solution 13:
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Solution 14:
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Solution 15:
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Exercise 20(B)

Solution 1:
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Solution 2:
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Solution 3:
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Solution 4:
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Solution 5:
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Solution 6:
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Solution 7:
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Solution 8:
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Solution 9:
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Solution 10:
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Solution 11:
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Solution 12:
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Solution 13:
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We need to find the cost of carpeting of 80 cm = 0.8 m wide carpet, if the rate of carpeting is Rs. 25. Per metre.
Then
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Solution 14:
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Solution 15:
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Solution 16:
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Solution 17:
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Solution 18:
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Solution 19:
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Solution 20:
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Solution 21:
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Solution 22:
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Solution 23:
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Solution 24:
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Solution 25:
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Solution 26:
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Solution 27:
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In the given figure, we can observe that the non-parallel sides are equal and hence it is an isosceles trapezium.
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Solution 28:
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Solution 29:
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Solution 30:
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Solution 31:
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Solution 32:
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Solution 33:
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Solution 34:
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Solution 35:
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Solution 36:
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Exercise 20(C)

Solution 1:
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Solution 2:
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Solution 3:
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Solution 4:
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Solution 5:
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Solution 6:
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Solution 7:
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Solution 8:
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Solution 9:
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Solution 10:
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Solution 11:
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Solution 12:
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Solution 13:
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Solution 14:
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Solution 15:
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Solution 16:
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Solution 17:
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Solution 18:
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Solution 19:
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Solution 20:
From the given data, we can calculate the area of the outer circle and then the area of inner circle and hence the width of the shaded portion.
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Solution 21:
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Solution 22:
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Solution 23:
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Solution 24:
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Solution 25:
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Solution 26:
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Solution 27:
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Solution 28:
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