SOLUTION: How do you find the area of a parallelogram with sides 10 feet and 40 feet and an included angle of 30 degrees? Do you just do b*h ( 10*40)?

Algebra ->  Surface-area -> SOLUTION: How do you find the area of a parallelogram with sides 10 feet and 40 feet and an included angle of 30 degrees? Do you just do b*h ( 10*40)?      Log On


   

Question 252568: How do you find the area of a parallelogram with sides 10 feet and 40 feet and an included angle of 30 degrees? Do you just do b*h ( 10*40)?
Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
The easy way here is with this formula:
A+=+%281%2F2%29%28slant+height%29%28base%29
we use 1/2 because the perpendicualr height is side opposite the 30 degree angle, or 1/2 the hypotenuse of 10.
A+=+%281%2F2%29%2810%29%2840%29
A = 200 square feet