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tan 20 = 2.23716094

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Q: What is tan 20?
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What is the tangent ratio of angle y?

tan y = 20/15


What angle do you need for a gradient of 1 in 20?

If the angle is x radians, then tan(x) = 1/20 = 0.05 So x = tan-1(0.05) = 0.04996 radians = 2.86 degrees (approx)


What is tan20tan32 plus tan32tan38 plus tan38tan20?

This may not be the most efficient method but ... Let the three angle be A, B and C. Then note that A + B + C = 20+32+38 = 90 so that C = 90-A+B. Therefore, sin(C) = sin[(90-(A+B) = cos(A+B) and cos(C) = cos[(90-(A+B) = sin(A+B). So that tan(C) = sin(C)/cos(C) = cos(A+B) / sin(A+B) = cot(A+B) Now, tan(A+B) = [tan(A)+tan(B)] / [1- tan(A)*tan(B)] so cot(A+B) = [1- tan(A)*tan(B)] / [tan(A)+tan(B)] The given expressin is tan(A)*tan(B) + tan(B)*tan(C) + tan(C)*tan(A) = tan(A)*tan(B) + [tan(B) + tan(A)]*cot(A+B) substituting for cot(A+B) gives = tan(A)*tan(B) + [tan(B) + tan(A)]*[1- tan(A)*tan(B)]/[tan(A)+tan(B)] cancelling [tan(B) + tan(A)] and [tan(A) + tan(B)], which are equal, in the second expression. = tan(A)*tan(B) + [1- tan(A)*tan(B)] = 1


Area of a rectangle 70 degree diagonal and side 60 feet long?

Other side = 60 tan 20, so area of rectangle = 3600 tan 20 = 3600 x 0.36397= 1310.29 sq ft


A 20 deg. angle is the rise of a ramp built inside a stadium for people to move from the main level 18 feet to the 2nd floor. How long is the ramp?

If the length of the ramp is L feet, then tan(20) = 18/L so that L = 18/tan(20) = 49.45 feet.


How do you get tan not at the beach?

Get a Tan Extender Lotion. Bath and Body Works has one. "After Sun Tan Extending Lotion" It will make sure your tan wont fade! Try a tanning lotion or spray. But be careful how much you much you use or you might turn orange.


Find the value of 3 sin 40 4 cos 20 - tan 45?

6.25