How do you find the area of the lateral faces of the right triangular prism with altitude of 5 cm and base edges of length 3 cm, 4 cm, and 5 cm?

1 Answer
May 30, 2017

Answer:

The total lateral area for the Triangular prism is #60"cm"^2#

Explanation:

#A = l xx w#

#"Lateral Area" = l_1 xx w_1 + l_2 xx w_2 + l_3 xx w_3#

#"Side 1" = 5 xx 3#

#color(blue)("Side 1" = 15"cm"^2#

#"Side 2" = 5 xx 4#

#color(blue)("Side 2" = 20"cm"^2#

#"Side 3" = 5 xx 5#

#color(blue)("Side 3" = 25"cm"^2#

#"Lateral Area" = 5 xx 3 + 5 xx 4 + 5 xx 5#

#"Lateral Area" = 15 + 20 + 25#

#color(red)("Lateral Area" = 60"cm"^2#