one half is 45
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It is: 1.5 times 90 = 135 degrees
45 is half of 90.
60 seconds an 1 minute 60 minutes in 1 hour 30 minutes in half an hour 90 minutes in one and a half hours. So 90 minutes * 60 seconds = 5400 seconds
No. An angle is (90 minus its complement) degrees. The definition of the complement is "90 degrees minus the original angle".
First one 90 x 0.6 = 54 100 x 0.5 = 50