On a plan of a house, a rectangular room is shown with sides of length 6cm and 8cm
respectively. If the scale used is 1:80 what are the lengths of the room?

Help ?

Question

On a plan of a house, a rectangular room is shown with sides of length 6cm and 8cm
respectively. If the scale used is 1:80 what are the lengths of the room?

Help ?

hartnn · Answer

just multiply 80 to both dimensions.

anonymous · Answer

oh. Is that really all ? 
I'm sorry, its been a while since ive been in school.

hartnn · Answer

yup. its just 
6*80 cm X 8*80 cm
and u are done.

hartnn · Answer

1:80 means 1 unit of plan = 80 units actual.
so, breadth 6 cm plan = 6*80 cm is actual
same for length

anonymous · Answer

so 8 x 80 is one side and 6 x 80 is the other ?

hartnn · Answer

yup.
whats 8x80 =... ?
and 6*80 =... ?
and don't forget to write cm as the unit.

hartnn · Answer

*6x80 =.. ?

anonymous · Answer

480

anonymous · Answer

and 8 x80 is 640

hartnn · Answer

so the room dimension are 480X640

hartnn · Answer

oops, i forgot cm 
480cm X 640 cm

anonymous · Answer

thank you :D

hartnn · Answer

welcome ^_^

anonymous · Answer

I have another if you dont mind ?

hartnn · Answer

sure, ask

anonymous · Answer

A gardener marks out a new section of lawn that is supposed to be a rectangle with
sides of length 15m and 10m respectively. To check he has marked out a rectangle he
measures the length of the diagonal. How long should this be?

anonymous · Answer

is there a quicker way then drawing the box to a smaller scale and measuring it that way ?

hartnn · Answer

yes, the diagonal can be found using pythagoras theorem
do u know that ?

anonymous · Answer

no I dont.
I dont remember much of pythagoras either >.< its been two years since ive been in proper school.

hartnn · Answer

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can u find c ?