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2015-01-22T22:37:02+08:00

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X^2 + 3x^2 = 40^2
4x^2=40^2
2x=40
x=20

20x60
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hey how did you solve it can you please explain it to me ...
you will get a triangle. use phytagorean
ahh okay thanks.
2015-01-23T14:30:50+08:00
SIN EQUALS OPPOSITE OVER HYPOTENUSE
SIN=WIDTH OVER 40 = 0.75
3=L X W
L=W X 3
L=0.75 X 3 = 2.25
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