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The area of the four walls in a room is 120 m². The length is twice the breadth. If the height of the roomis 4 m, find the area of the floor. |
| Answer» N:⤵️The area of the four WALLS in a ROOM is 120 m². The length istwice the breadth. If the height of the roomis 4 m, find the area of the floor.l= 2bh = 4mArea fof four walls A = 2(1+b)h=> 120 = 2 x 4(2b+b)=> b= 5mArea of floor= LB = 2b.b = 2b² = 2 x 5²=> 50m² | |