Question

I NEED HELP!
The area of a rectangle is the product of width and length. If a rectangle has length 18mthe square root of 5 times m. and width the square root of 4 times m., which of the following is the area of the rectangle?

36mthe square root of 5 times m.

36m2the square root of 5.

72mthe square root of 5 times m.

72m2the square root of 5.

Answer 1

Where are you stuck?

Answer 2

I need help solving it i dont know what to do

Answer 3

As the question says.. area is the product of width and length.. and you're given the values of length and width.. so you just need to multiply them.

Answer 4

alright I did and got 80m which isn't any of the choices

Answer 5

would it be B or D?

Answer 6

ok your length is 18*(sqrt5)m and your width is 4m.. multiplying these.. 18*4*(sqrt5).. what do you get?

Answer 7

i got 160 with my calculator

Answer 8

eh.. 18*4*sqrt5=72*sqrt5..
you must be mistyping something.

Answer 9

so it's C?

Answer 10

D.. The units of area is m^2..

Answer 11

thank you!

Answer 12

Cheers!