Question

Construction This section of a concrete skateboard ramp has the shape of a triangular prism. Find the volume

of the triangular prism. Find the value of the concrete used in the ramp if the cost of concrete is $4.00 per cubic
foot.

Answer 1

volume = 73.3ft³

value = $194.4

Explanation:

volume of prism = (½bh)l

=(½×4×4)×9.2

=73.6ft³

value of concrete

1ft³ : $4.00

73 .6ft³ : X

X : (73.6ft³ × $4.00) ÷ 1ft³

X : $294.4