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Perimeter and Area

    Introduction

    Area of a Parallelogram

    Area of a Triangle

    Circumference of a circle

    Rectangular Paths

    Looking Back

    Exercise 13.1

    Exercise 13.2

    Exercise 13.3

    Exercise 13.4

    Exercise 13.5

    Exercise 13.6

    Easy Level Worksheet

    Moderate Level Worksheet

    Hard Level Worksheet

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Perimeter and Area > Looking Back

Looking Back

(1) The area of the parallelogram is equal to the of its base (b) and corresponding height(h) i.e., A = . Any side of the parallelogram can be taken as the base.

(2) The area of a triangle is equal to the of its base (b) and height (h) i.e., A = bh.

(3) The area of a rhombus is equal to the product of its i.e., A = d1d2.

(4) The circumference of a circle = 2πr where r is the radius of the circle and π = (fraction) or (decimal).