Question

( a) Find the lateral area (in square meters) of the prism.

Answer 1

Answer:

( a) Find the lateral area (in square meters) of the prism.

answer:

the lateral area=perimeter of triangle ×height=

(4+5+6)×8=120m²

(b) Find the total area (in square meters) of the prism. (Round your answer to three decimal places.)

answer:

total surface area=lateral surface area +2crossed section area=120+2×(1/2×4×5) =120+20=140m²

(c) Find the volume (in cubic meters) of the prism. answer:

volume of prism=area of base×height=1/2×4×5×8=80m³