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

ICSE SolutionsSelina ICSE Solutions

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)**

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Since the perimeter of the isosceles triangle is 36cm and base is 16cm.

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**Exercise 20(B)**

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**Solution 13:**

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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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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**Exercise 20(C)**

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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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**More Resources for Selina Concise Class 9 ICSE Solutions**

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I have a doubt in exercise 20(B) question no. 16 .

You have find the AREA of the floor left uncovered in the question but you have used the formula of PERIMETER 2(l+b). Why??

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