A rectangular prism, with a capacity of 1.5 cups, the length of the rectangle is 11.5 cm, the width is 8.5 cm what is the surface area? The heights of the triangles is 11.5 cm

## A rectangular right isosceles pyramid, with a capacity of 1.5 cups

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# 1 Answer

There are four triangles here

two triangles with base 11.5 cm and height 11.5cm

two triangles with base 8.5 cm and height 11.5 cm

Surface are = 2x( 1/2 x 11.5 x 11.5) + 2x(1/2 x 8.5 x 11.5)

=> 132.5 + 97.75 = 230.25 cm

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