127k views
5 votes
Surface are of prisms and spheres! Help!!!!!

Surface are of prisms and spheres! Help!!!!!-example-1

1 Answer

5 votes

Answer:

96 m²

Explanation:

You want the surface area of a triangular prism of height 7 m with bases that are 3-4-5 m right triangles.

Base area

The total area of the two triangular bases is ...

A = 2(1/2)bh

A = (3 m)(4 m) = 12 m² . . . . . . total base area

Lateral area

The lateral area of the prism is the product of the perimeter of a base and the height of the prism.

LA = Ph

LA = (3 +4 +5 m)(7 M) = 84 m²

Surface area

The total surface area of the prism is the sum of the base area and the lateral area:

SA = 12 m² +84 m² = 96 m²

The surface area of the triangular prism is 96 m².

<95141404393>

User OrElse
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories