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CBSE Class 8 Answered

the area of a rectangular field is 3a squared+5ab+2b squared.one of its sides is (a+b).find the lenght of the fence around the field.   the area of one face of a cubicle water tank is 14400 sq.cm .if the tank is full,how many 3 litre bottles of water can be filled from this?
Asked by Trisha Gupta | 04 Sep, 2019, 01:54: PM
answered-by-expert Expert Answer
A r e a equals 3 a squared plus 5 a b plus 2 b squared L e t space t h e space l e n g t h space b e space l rightwards double arrow l cross times b equals A r e a rightwards double arrow l cross times left parenthesis a plus b right parenthesis equals 3 a squared plus 5 a b plus 2 b squared rightwards double arrow l equals fraction numerator 3 a squared plus 5 a b plus 2 b squared over denominator a plus b end fraction rightwards double arrow L e n g t h equals 3 a plus 2 b
Answered by Renu Varma | 05 Sep, 2019, 10:39: AM

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