Question

To use flat cutout to form cube, cuboid and pyramid to obtain formulae for volume and total surface area​

Answer 1

Answer:

CUBE

Each cube consists of six squares with equal sides

Now,TSA = Area of six squares = 6 a square.

Where a = side of the square.

For volume,we will multiply the area with the height of the surface=square multiply by a = a cube.

CUBOID

Each cuboid consists of 6 rectangles have three dimensions namely length,breadth and height.

Now,TSA = Area of six rectangles = 2 lb+2 bl+2 hl

TSA = 2(lb+bl+hl)

Volume = Area of rectangle×height = (lb)×height = lbh

PYRAMID

TSA = ½ height a+4 a (Where h = height of pyramid and a = side of base)

Volume = Area of base into ⅓ height = ⅓ a square h

Step-by-step explanation:

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Answer 2

Answer:

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