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The sides of a parallelogram are 4cm and 6cm, and the angle between the sides is 30 degree. Find the area of the parallelogram. (without the use of trigonometry or vector; this is for a 8th std student)

@Daedalus sir, Thank you sir for helping. But there is a mistake in the f(x) which you have solved. It gives the nearly correct value for f(1)=2.9.... , f(2)=2.9...., but from f(3) to f(12) it gives the value so absurd. Could it be expressed in trigonometric function? Actually I expect it in a more simplified form. If we plot the points (1,3), (2,3), (3,6), (4,1), (5,4), (6,6), (7,2), (8,5), (9,0), (10,3), (11,5), (12,1) on graph paper, we get a sin or cos like curve (nearly). Plz help.

I have the points (1,3), (2,3), (3,6), (4,1), (5,4), (6,6), (7,2), (8,5), (9,0), (10,3), (11,5), (12,1). Find the equation of the curve. Please solve it.

Could it be expressed in trigonometric function? Actually I expect it in a more simplified form. If we plot the points (1,3), (2,3), (3,6), (4,1), (5,4), (6,6), (7,2), (8,5), (9,0), (10,3), (11,5), (12,1) on graph paper, we get a sin or cos like curve (nearly). Plz help.

f(x) is a ploynomial such that f(1)=3, f(2)=3, f(3)=6, f(4)=1,f(5)=4, f(6)=6, f(7)=2, f(8)=5, f(9)=0, f(10)=3, f(11)=5, f(12)=1.Find the equation of x, i.e. f(x).