Question

Sides of three square rooms measure 13 feet each, and sides of two square rooms measure 15 feet each. Which expression shows the total area of these five rooms?
(3 × 13^2) + (2 × 15^2)
(2 × 13^3) + (2 × 15^2)
(3 × 15^2) + (2 × 13^2)
(3 × 13^2) × (2 × 15^2)

Answer 1

@amorfide will you help me

Answer 2

@pooja195

Answer 3

okay you have 5 squares
3 of them are 13feet length of sides each
and 2 are 15 feet in length of sides each

so you need to work out the area of a rectangle that is 3x13 in length, and 13 in height

if the area of a rectangle is length x width i will let you figure out the area of that

the other two squares are 15 in length each so you need to work out the area of a rectangle which is 2x15 in length and 15 in height

i will let you work out that area

you will add the areas you worked out

Answer 4

wait so what do i do?

Answer 5

I just told you

you have 3 squares of 13 feet in length for the sides each
so if you put 3 squares together, the height stays as 13 but the length will be 3x13

so length=3x13
and height = 13
so your area of the three squares is 3x13x13=3x\[3(13)(13)=3(13^{2})\]

Answer 6

you can work out the last 2 squares with 15 feet in length each

Answer 7

got it! thank you!