Question

Janice needs to re-shingle the roof of her house.One bundle of shingles costs $35.99 and covers 2.25m^2.
a)how many bundles of shingles does she need for the roof?
b) what is the total cost of re-shingling the roof?

Answer 1

* i will post a picture of it

Answer 2

what is the net area of the roof...?

Answer 3

is this a slab shelby :o

Answer 4

i slacked off for this one because it's too difficult to draw

Answer 5

but anyways, how do i solve this?

Answer 6

the first thing is the area of the roof...

Answer 7

ok

Answer 8

you know, what is this shape of roof...?

Answer 9

triangle

Answer 10

triangle or triangular prism....?

Answer 11

i think its a square based pyramid actually

Answer 12

@paki what do i have to do

Answer 13

i am stuck in the figure geometry...

Answer 14

oh

Answer 15

@ganeshie8 please help here....

Answer 16

okay i'll wait about 4 minutes for him to answer

Answer 17

and then i'll leave because i need to head to school

Answer 18

oh so sorry... i am trying my best to help....

Answer 19

its fine

Answer 20

@ganeshie8 welcome here... please have a look here...

Answer 21

I think to keep the calculations+problem simple, we can assume the shingles are flexible and can be deformed into any shape we want

Answer 22

but here the shape is confusable... i assumed it to be right rectangular pyramid...

Answer 23

yes its a square pyramid :

base = square of side 10m
height = 4.36 - 2.32 = 2.04

Answer 24

we need to find the lateral area

Answer 25

what will be the length and width then,,,,?

Answer 26

yeah figure is rite....