Question

The roof of a cabin is to be shingled at a cost of $70 a square. (A square, in shingling, is a region with an area of 100 sq. ft.) Find the cost of shingling the roof shown, assuming the roof is symmetrical.

Answer 1

picture of the problem

Answer 2

can you find the area of 1/2 of the roof, using

area= length* width

?

Answer 3

??????

Answer 4

do you see in the picture that one side of the roof is a rectangle.
can you find the area of a rectangle ?

Answer 5

i think it wants the whole roof

Answer 6

yes it does. But first things first. find the area of one side. then double it to get the area of the whole roof.

Answer 7

so length *width right ?

Answer 8

yes, what do you get ?

Answer 9

hold up

Answer 10

i got 540

Answer 11

now double it, to get the area of the whole roof

Answer 12

1080 ?

Answer 13

the area of the whole roof is 1080 sq ft

now you need to figure out how many squares that is
A square, in shingling, is a region with an area of 100 sq. ft.

can you do that ?

Answer 14

so 1080/100 ?

Answer 15

yes

Answer 16

10.8

Answer 17

so the roof is 10.8 squares

how much does it cost if
cost of $70 a square

Answer 18

$756.00 ?

Answer 19

yes

Answer 20

tahnks a lot you helped me and now I know exactly how to do these problems

Answer 21

yes, and practice helps

Answer 22

for sure..... thanks