2 Answers
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In a RIGHT ANGLED TRIANGLE….BY TRIGONOMETRY…
you must be familar with soh cah toa..
Sin x = opposite side / hypotenuse … plz dont tell me you dont know this…
sin x = 40 / 70…
im using x instead of theta… cant find it in keyboard..
sin x = 0.57142857142
x = arcsin(0.57142857142) ie sine inverse…
x = arcsin(40 / 70) = 0.608245579 rad
in degrees = 180 / Pi * 0.608245579 = 34.8499045842 degrees
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sin(theta) = 40/70
theta = sin inverse (40/70)
theta = 34.8 degrees
Source(s): i know some maths
