Showing posts with label " volume problems. Show all posts
Showing posts with label " volume problems. Show all posts

Monday, January 31, 2011

Anna's Surface Area

Finding the surface area of Rectangular Prism and Triangular Prism.

Triangular Prism



































Rectangular Prism.



















Cylinder Volume and Volume Problems

7.3 question




v= π . r^2 . h
v= (3.14 x 5 x 5)x23cm
v=78.5 x 23cm
v=
1805.5 cm^3












7.4 question




a) Yes, he has enough small triangular Prisms to make a giant prism with a base of 5.6m and height of 6.8m.
b) v=b.h^1/2.h^2
v=(5.6x1.18)x6.8 m
v= 10.08 x 6.8 m
v= 69 m^3
The Volume of the new prism is 69m^3