ICSE Class 7 Answered

The length of rectangle field is twice it's breadth and area is 2 hectare. Find the area of fencing the field at 50.00 rs per metre

Asked by Vanshdodeja44 | 12 Aug, 2018, 07:35: PM

Expert Answer

begin mathsize 16px style The length of rectangle field is twice it apostrophe straight s breadth and area is 2 hectare. Find the area of fencing the field at 50.00 rs per metre Area space equals space 2 space hectares space equals space 2 space cross times space 10000 space straight m squared space equals space 20000 space straight m squared Let comma the space breadth space of space rectangular space field space equals space straight b comma then space according space to space the space condition space we space get comma straight l space equals space 2 straight b space Area space of space straight a space rectangle space equals space straight l space cross times space straight b rightwards double arrow 2 0000 space equals space 2 straight b space cross times space straight b rightwards double arrow 2 straight b squared space equals space 20000 rightwards double arrow straight b squared space equals space 10000 rightwards double arrow straight b space equals space 100 space straight m straight l space equals space 2 straight b space equals space 2 space cross times space 100 space equals space 200 space straight m Perimeter space equals space 2 left parenthesis space straight l space plus space straight b right parenthesis space equals space 2 left parenthesis 200 space plus space 100 right parenthesis space equals space 2 space cross times space 300 space equals space 600 space straight m Therefore comma space the space cost space of space fencing space the space boundary space equals space 600 space cross times space 50 space equals space Rs. space 30000 end style

begin mathsize 16px style The length of rectangle field is twice it apostrophe straight s breadth and area is 2 hectare. Find the area of fencing the field at 50.00 rs per metre Area space equals space 2 space hectares space equals space 2 space cross times space 10000 space straight m squared space equals space 20000 space straight m squared Let comma the space breadth space of space rectangular space field space equals space straight b comma then space according space to space the space condition space we space get comma straight l space equals space 2 straight b space Area space of space straight a space rectangle space equals space straight l space cross times space straight b rightwards double arrow 2 0000 space equals space 2 straight b space cross times space straight b rightwards double arrow 2 straight b squared space equals space 20000 rightwards double arrow straight b squared space equals space 10000 rightwards double arrow straight b space equals space 100 space straight m straight l space equals space 2 straight b space equals space 2 space cross times space 100 space equals space 200 space straight m Perimeter space equals space 2 left parenthesis space straight l space plus space straight b right parenthesis space equals space 2 left parenthesis 200 space plus space 100 right parenthesis space equals space 2 space cross times space 300 space equals space 600 space straight m Therefore comma space the space cost space of space fencing space the space boundary space equals space 600 space cross times space 50 space equals space Rs. space 30000 end style

begin mathsize 16px style The length of rectangle field is twice it apostrophe straight s breadth and area is 2 hectare. Find the area of fencing the field at 50.00 rs per metre Area space equals space 2 space hectares space equals space 2 space cross times space 10000 space straight m squared space equals space 20000 space straight m squared Let comma the space breadth space of space rectangular space field space equals space straight b comma then space according space to space the space condition space we space get comma straight l space equals space 2 straight b space Area space of space straight a space rectangle space equals space straight l space cross times space straight b rightwards double arrow 2 0000 space equals space 2 straight b space cross times space straight b rightwards double arrow 2 straight b squared space equals space 20000 rightwards double arrow straight b squared space equals space 10000 rightwards double arrow straight b space equals space 100 space straight m straight l space equals space 2 straight b space equals space 2 space cross times space 100 space equals space 200 space straight m Perimeter space equals space 2 left parenthesis space straight l space plus space straight b right parenthesis space equals space 2 left parenthesis 200 space plus space 100 right parenthesis space equals space 2 space cross times space 300 space equals space 600 space straight m Therefore comma space the space cost space of space fencing space the space boundary space equals space 600 space cross times space 50 space equals space Rs. space 30000 end style

Answered by Yasmeen Khan | 13 Aug, 2018, 11:31: AM

ICSE Class 7 Answered

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ICSE Class 7 Answered

Application Videos

Algebraic Identities

Expansion using Algebraic Identities_2

Expansion using Algebraic Identities_1

Concept Videos

Construction of Rhombus

Construction of squares and rectangles

Pair of Lines

Surface Area: Cubes and Cuboids

Construction of Parallel Lines

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