# Ssc cgl-numerical-aptitude-area-of-plane-figures

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Published on February 21, 2014

Author: upscportal

Source: slideshare.net

## Description

Ssc cgl-numerical-aptitude-area-of-plane-figures

http://sscportal.in Online Coaching by SSCPORTAL Staff Selection Commission Combined Graduate Level [Tier-1] Subject : Numerical Aptitude Chapter : Area of Plane Figures © SSCPORTAL.IN SSC EXAM Online Coaching

Numerical Aptitude http://sscportal.in Area:The area of a plane figure is the measure of the surface enclosed by its boundary. The area of a triangle or a polygon is the measure of the surface enclosed by its sides. © 2014 SSCPORTAL .IN Join Online Coaching Click Here

Numerical Aptitude http://sscportal.in Area:1.Triangle 2. Right-Angles Triangle 3.Isosceles Right-Angled Triangle 4.Equilateral Triangle 5. Square 6.Rectangle 7.Parallelogram 8.Rhombus © 2014 SSCPORTAL .IN Join Online Coaching Click Here

Numerical Aptitude http://sscportal.in Example 1: The length and breadth of a room are in the ratio of 3 : 2. Its area is 864 m2. Find its perimeter. Solution. Let the length be 3x m and breadth be 2x m. Area = (3x × 2x) = 6x2 = 864 => x2 = 144 => x = 12 Length = 3x = (3 × 12) m = 36 m Breadth = 2x = (2 × 12) m = 24 m Perimeter = 2 (l + b) = 2 (36 + 24) = 120 m © 2014 SSCPORTAL .IN Join Online Coaching Click Here

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