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Solution 4.1:2

From Förberedande kurs i matematik 1

Revision as of 09:17, 27 September 2008 by Ian (Talk | contribs)
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If we use the mnemonic that one turn is 360 or 2 radians, we can derive a formula for the transformation from degrees to radians. Because


3601=2 radians

this gives


1=2360 radians =180 radians

Now we can start transforming the angles:

a) 45=451=45180 radians =4 radians

b) 135=1351=135180 radians =43 radians

c) −63=−631=−63180 radians =−207 radians

d) 270=2701=270180 radians =23 radians

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