### volume of a trianglular PRISM!

To find the volume of a trianglular prism you need to multiply base times height times width and divded by 2. eg. If the base of a triangluar prism was 5 cm, height was 4 cm, and width was 10 cm it would look like this.V=BxHxWx.5

V=5x4x10x.5

V=20x10x.5

V=30x.5

V=15 cm3

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To find the TSA you do this. If the height was 10cm, base was 7cm, and width was 6cm.

1.TSA=height x base

TSA=10x7

TSA=70cm2 x 2 = 140cm2

2.TSA=Base x Width

TSA=7x6

TSA=42cm2 x 2 =84cm2

3.TSA=Height x Width

TSA=10x6

TSA=60cm2 x 2 = 120 cm2

I hope I didn't do it wrong.

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