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

Answer 1

Hint: each face of the lateral side looks like this

Answer 2

so it is C correct?

Answer 3

no

Answer 4

what's the area of this one triangle

Answer 5

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

Answer 6

a pentagonal pyramid looks like this



and you can see there are 5 identical triangular faces that make up the lateral side

Answer 7

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

Answer 8

correct

Answer 9

thx (:

Answer 10

yw