Find the lateral area of a regular pentagonal pyramid that has a slant height of 14 in. and a base side length of 6 in.
A) 210 in^2 B) 240 in^2 C) 42 in^2 D) 420 in^2

Question

Find the lateral area of a regular pentagonal pyramid that has a slant height of 14 in. and a base side length of 6 in. 
A) 210 in^2 B) 240 in^2 C) 42 in^2 D) 420 in^2

jim_thompson5910 · Answer

Hint: each face of the lateral side looks like this

|dw:1355955136785:dw|

anonymous · Answer

so it is C correct?

jim_thompson5910 · Answer

no

jim_thompson5910 · Answer

what's the area of this one triangle

jim_thompson5910 · Answer

once you have this area, you have to multiply it by 5 because there are 5 identical triangles that make up the total lateral side

jim_thompson5910 · Answer

a pentagonal pyramid looks like this

|dw:1355955592702:dw|

and you can see there are 5 identical triangular faces that make up the lateral side

anonymous · Answer

so 14*6=42 then multiplied by 5= 210

jim_thompson5910 · Answer

correct

anonymous · Answer

thx (:

jim_thompson5910 · Answer

yw