Help with my Geometry homework?

Question

I'm having some difficulty with this geometry problems.

1. The perimeter of a square window is 20 feet 6 inches.

Find the area of the window in square inches.

Find the area of the window in square feet.

2.You walk 108 yards due south, then 123 yards due west, and then 23 yards due north.

How far are you from your staring point?

3.The circumference of a circular window is 14 feet.

Find the area of the window. (square feet).

Answer 1

oh man inches feet there are just too many

why arent we all usin meters :D

but lets get to the point

1)

a*sqrt2=20+4.9999(lets round it till 5) feets

soo u get a*sqrt2=25 feet

a^2 * 2=625 feet ^2

so its a^2=312.5 feet^2

in inches its 1feet=12 inches

so 1feet^2=144 inches

soo a^2=144*312.5=45000 inches^2

3) 2*R*pi=circumfirense

so lets take pi=22/7 ( ussualy i dont do that  )

so we get 2*R*22/7=14 feet

R=2.23 feet

so we get

area=R^2*pi

or  area=15.61 feet^2

2)

ul get a triangle with one angle 90 degrees

so its pithagora

123^2+85^2=distance^2 {85=108-23}

distance=145.51 yards

:)