Thursday
May 23, 2013

# Homework Help: 6th grade math

Posted by Kate on Monday, May 28, 2012 at 3:29am.

Find the volume of the right triangular prism. The bases are equilateral triangles with a length of 6 mm. The height of the prism is 8.4 mm. (Round to the nearest tenth.)

• 6th grade math - Bosnian, Monday, May 28, 2012 at 4:09am

V = Volume

A = Area of trangle

V = A * h

A = s ^ 2 * sqrt ( 3 ) / 4

where

s = length of equilateral triangle sides

A = 6 ^ 2 * sqrt ( 3 ) / 4

A = 36 * sqrt ( 3 ) / 4

A = 4 * 9 * sqrt ( 3 ) / 4

A = 9 * sqrt ( 3 )

A = 9 * 1.73025

A = 15.58845 mm ^ 2

V = A * h

V = 15.58845 * 8 .4

V = 130.94298 mm ^ 3

V = 130.9 mm ^ 3 rounded to the nearest tenth

• 6th grade math - ts, Thursday, June 28, 2012 at 7:20am

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