the lateral surface area of hollow cylindrical cube is 4224cm . it is cut along its height and formed into a rectangular sheet of 33cm width .find the perimeter of the rectangle.
Answers
Step-by-step explanation:
Answer
Area of Rectangular Sheet = Surface Area of the Cylinder
Area of Rectangle = l x b
⇒ l x b = 4224
⇒ l x 33 = 4224
⇒ l = 128 cm
Perimeter of rectangular sheet = 2( l + b)
= 2 (128 + 33)
= 2 x 161 = 322 cm
Answer:
Lateral surface area of cylinder = 4224centimetre square
breath of rectangular sheet = 33 cm
Lateral surface area of cylinder = Area of rectangular sheet
4224 cm = Length × breath
4224 = length × 33 cm
4224 divide by 33 = length
4224 cut on 128 =length
length =128
Perimeter of rectangular sheet = 2× ( length × breath )
= 2 × (128+33)
= 2 × 161
= 322 centimetre square. Answer