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Old 04-03-2016, 05:29 AM   #7
HarryT
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Quote:
Originally Posted by svenlind View Post
If you have a scientific calculator then this is easier:

Width = 20*cos(atan(4/3))
Height = 20*cos(atan(3/4))

You don't need a calculator of any kind!

A right-angled triangle with sides of 3 units and 4 units has a hypotenuse of 5 units. Therefore:

Width = 20 x 3/5 = 12cm
Height = 20 x 4/5 = 16cm

QED
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