SOLUTION: Help please. find the area of the unshaded part of the rectangle. Copy & paste the link to see the rectangle please thanks link ; http://prntscr.com/7cdjxc A. 1800 m^2 ?

Algebra ->  Rectangles -> SOLUTION: Help please. find the area of the unshaded part of the rectangle. Copy & paste the link to see the rectangle please thanks link ; http://prntscr.com/7cdjxc A. 1800 m^2 ?      Log On


   



Question 973465: Help please.
find the area of the unshaded part of the rectangle.
Copy & paste the link to see the rectangle please thanks
link ; http://prntscr.com/7cdjxc
A. 1800 m^2 ? B. 2250m^2? C. 2925m^2? D. 4725m^2? Thanks.

Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
The large rectangle has total area:
Area=LW=(45m)(105m)=4725 square meters
.
The small rectangle has area:
Shaded Area=LW=(30m)(45m)=1350 square meters
.
The triangle has area:
Shaded area=(1/2)bh=(1/2)(20m)(45m)=450 square meters
.
The unshaded area is the total area minus the shaded areas:
4725m^2-1350m^2-450m^2= 2925 square meters