I'm stuck!
A park in a subdivision is triangular-shaped. Two adjacent sides of the park are 573 feet and 536 feet. The angle between the sides is 58o. To the nearest unit, find the area of the park in square yards
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jimthompson5910 (jim_thompson5910):
given this triangle
|dw:1370920187718:dw|
jimthompson5910 (jim_thompson5910):
the area is
A = (1/2)*b*c*sin(x)
OpenStudy (anonymous):
i got 152469.49
OpenStudy (anonymous):
A. 14,470 yd2
B. 28,940 yd2
C. 32,557 yd2
D. 43,410 yd2
but these are the choices
jimthompson5910 (jim_thompson5910):
how did you get 152469.49?
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jimthompson5910 (jim_thompson5910):
oh i see, you need to make sure you're in degree mode (not radian mode)
OpenStudy (anonymous):
lol (1/2)573*536*sin(58)
jimthompson5910 (jim_thompson5910):
and for some strange reason the initial units are in feet...but they want the answer in square yards (not square feet)
jimthompson5910 (jim_thompson5910):
switch over to degree mode
OpenStudy (anonymous):
in degree mode i got 130229
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OpenStudy (anonymous):
so about 43 sq yards
jimthompson5910 (jim_thompson5910):
good, I'm getting 130,229 as well
then you divide by 9 (since 1 sq yard = 9 sq ft) to convert to square yards