Area Surface Area Volume Triangle Polygon Quadrehedron

The total area of 2-dimensional surfaces that make up a 3-dimensional object

• Rectangle

• Triangle

• Volume

• Surface Area

The number of square units it takes to completely fill a space or surface.

• Cubic Units

• Surface Area

• Area

• Volume

Volume of the solids is measured in cubic units

• Area

• Lateral Faces

• Square Units

• Cubic Units

A 3-dimensional figure that has polygons as faces

• Polygon

• Quadrilateral

• Polyhedron

• Net

What is the volume of the following triangular prism?

• 45 cubic in

• 36 cubic in

• 108 cubic in

• 54 cubic in

Mathematical Equivalence

ON

Tags

7.9.D

• 804 mm³

• 780 mm³

• 1,560 mm³

• 1,092 mm³

Find the surface area of the figure shown.

• 672 cm²

• 480 cm²

• 576 cm²

• 864 cm²

Find the surface area

• 284

• 326

• 462

• 231

• 38

• 10

• 20

• 11.8

• 42

• 28

• 29.6

• 18

Answer explanation

This is a triangular prism, the base is a triangle, not the rectangle!

Area of the triangle is bh/2 so 2(2)/2=2, Perimeter of the base is the distance around the triangle, 2+2+2.8 = 6.8, and height is the distance between the two bases, 5. So,

SA = 2B + Ph

SA = 2(2)+6.8(5)

SA = 38

V = Bh

V = 2(5)

V = 10