Question

Can someone please please help me with some more surface area of pyramids and cones???

Answer 1

maybe i might be able to help little bit maybe

Answer 2

take a screen shot of problem and upload it

Answer 3

for this one i need to find the slant hight, lateral area, and the surface area

Answer 4

for this one i need to find the slant height

Answer 5

okay hold on sec

Answer 6

okay on the slant height you use this formula =Lateral Area of a regular pyramid: ½ perimeter × slant height = 96 on this one

Answer 7

because see tha base of it is got dotted line
which means you take half of 16 = 8 and * that by 12 which gives us 96

Answer 8

on frist one to get surface area use this formula Surface Area = Lateral Area + n × Bases.

Answer 9

i should of put this at the top... they are multiple choice..
for the cone the choices are a) 20 b) 10.6 C08.9 d) 14.4 e)7.1

Answer 10

well hummmmmmmm

Answer 11

yeah sorry im trying to do like 5 things at once

Answer 12

all good i am trying to do my math work and help others

Answer 13

lol

Answer 14

(25/4+144/4)^(1/2) = (169/4)^(1/2) = 13/2
(169/4+25/4)^(1/2) = 6.96 for side of pyramid

Answer 15

6.96 for side of pyramid so would this be the slant height?

Answer 16

?, the side going from one of the bottom corners to the top.

Answer 17

It's the longest side on the pyramid

Answer 18

for the pyramid: the slant height choices are: a)4.5cm b)5.5cm c)6.5cm d)6cm e)7.8
for the lateral area choices are: a)57.5cm^2 b)65cm^2 c)32.5cm^2 d)78cm^2 e)90cm^2
for the surface area: a)57.5cm^2 b)65cm^2 c)32.5cm^2 d)78cm^2 e)90cm^2

Answer 19

Ok, slant height is the height from the midpoint on the base to the top. So 6.5

Answer 20

for SA, .5bh*4 + b^2
b=5, h=6.5
(5)(6.5)(2)+5(5)
90cm squared

Answer 21

I'm guessing lateral area means without the base, so it's probably 65

Answer 22

All you need to know to do these problems to use the Pythagorean theorem on Right triangles to find the missing side, and area of triangles is simply .5base times height.