Question

16. A belan is in the form of a cylinder of length 14 cm and
diameter 4 cm. It is used to make a chapati (Roti). How
much roti, it will flat while rolling once ?
(a) 188.57 cm?
(b) 182.28 cm
(c) 176.00 cm
(d) 170.50 cm​

Answer 1

Answer:

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Answer 2

Answer:

Answer-

( identity : (a-b)² = a²-2ab +b²)

= {(2x - 5y)}^{2}=(2x−5y)

2

= {(2x)}^{2} - 2(2x)(5y) + {(5y)}^{2}=(2x)

2

−2(2x)(5y)+(5y)

2

= 4 {x}^{2} - 20xy + 25 {y}^{2}=4x

2

−20xy+25y

2