GeoBlog 5th Period

Equations:

V= volume      B= area of the base    h= height      r= radius

Volume of a Pyramid- V=1/3Bh

Volume of a Cone- V=1/3πr²h

Example 1

V=1/3(BxH)

V= 1/3 (8×8)(6.5)

V=1/3(64)(6.5)

V=138.67 or 138 2/3 m³

Example 2

This is a 30-60-90 triangle so in order to find the height we multiply the long leg by √3 the sh.leg.

V=1/3π r²h

V= 1/3π(9²)(9√3)

V= 1/3π(81)(9√3)

V= 243π√3 m³

^{By Amanda C}