Perhaps a rectangular prism
The formula for finding the surface area of a rectangular prism is 2(wh + lw + lh), where w is width, h is height, and l is length. 3.14 is the value for pi, which is only used for circular objects, like circles, cylinders, and spheres. It has nothing to do with rectangular prisms. Click on the related link below for an illustration of the formula for the surface area of a rectangular prism.
Measure its length, width and height and multiply the three together.
Let's call the sides a, b, c. The rectangular prism with the smallest surface area is a cube. If the volume is 18cm^3 (18 cubic cm), then a x b x c=18. But since it's a cube, the sides are the same size. So the formula for volume is a^3=18 (i.e. a cubed = 18) Then each side of the cube will be the cube root of 18 (which is 2.62074139 to 8 decimal places) So the dimensions of the rectangular prism rounded to 2dp are 2.62 x 2.62 x 2.62. And the surface area using the rounded values is 41.19 to 2DP
There are many options: 2 rectangular prisms 2 cubes 2 parallelepipeds 2 tetrahedrons 2 square based pyramids are some possibilities using convex polyhedra.
You can do it ten times, I had an assignment and we had to make ten rectangular prisms 10 times
48
The volume of water in the rectangular swimming pool can be calculated using the formula for the volume of a rectangular prism, which is length x width x height. In this case, the volume would be 18m x 10m x 2.5m = 450 cubic meters.
240 m3 - without using a calculator !
Perhaps a rectangular prism
Assuming that the shape of the stadium is a rectangular prism, and using the equation for the area of a rectangular prism (LxWxH=V) you can say that 600x400x100=V 240000x100=V 24000000=V The number of cubic feet that it would take to fill the stadium is 24000000 cubic feet.
It depends on how accurately you do the measurements in each case.
Take two identical n-sided polygons in parallel planes. Join them together using n rectangular faces. The result will be a right prism.
3 x 3 x 4 = 36 cm3
The formula for finding the surface area of a rectangular prism is 2(wh + lw + lh), where w is width, h is height, and l is length. 3.14 is the value for pi, which is only used for circular objects, like circles, cylinders, and spheres. It has nothing to do with rectangular prisms. Click on the related link below for an illustration of the formula for the surface area of a rectangular prism.
Measure its length, width and height and multiply the three together.
28 We can check this using smaller prisims, with a triangular prism (3-sided) there are 6 vertices. WIth a rectangular prism (4-sided), there are 8 vertices. The number of vertices in a prism is always twice the number of sides.