29
160
Multiply the length of the rectangle by the width. For example: 34cm x 20cm = 680cm2
Rectangular prism is an example of a cuboid and surface area of a cuboid is given by: S = 2x(l+b+h) We can say l = 20cm, b = 11cm & h = 12cm So, surface area of the rectangular prism = 2x(20+11+12)cm2 = 2x43cm2 = 86cm2
11 x 8 = 88
29
11cm by 20cm = 220cm2
66cm2
The area of a hexagon with sides that measure 20cm is approximately 1039.23cm2
330 sq. cm
Area = 11*6 = 66 cm2
88cm2, but it's a rectangle, not a square.
160
With a rectangle, the area is length x width. So, 11x30=330cm.
Multiply the length of the rectangle by the width. For example: 34cm x 20cm = 680cm2
Rectangular prism is an example of a cuboid and surface area of a cuboid is given by: S = 2x(l+b+h) We can say l = 20cm, b = 11cm & h = 12cm So, surface area of the rectangular prism = 2x(20+11+12)cm2 = 2x43cm2 = 86cm2
11 x 8 = 88