Last one . use formulas to find the lateral area and surface area of the given prism. round your answer to the nearest whole number.

a. 645 m2; 812 m2
b. 668 m2 ; 704m2
c. 645 m2; 740 m2
d. 668 m2; 740 m2

The formula for finding the lateral area for a triangular prism is


So put in the values and you get




The formula for finding the surface area of a triangular prism is
SA = bh + (s1 + s2 + s3)H

So put in all the values and you get

SA = 9(8) + (9 + 8 + 12.04)23
SA = 740

Hope this helps! :)