The ratio of 90 to 18 is written as 90/18
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a + 18 = 90 is a linear equation in one variable. Adding both sides by -18, we get a + 18 - 18 = 90 - 18 a = 90 - 18 = 72
It is in the ratio of: 90 210
90 - 18 = 72 degrees.90 - 18 = 72 degrees.90 - 18 = 72 degrees.90 - 18 = 72 degrees.
18 times 5 = 90 The product of 18 and 5 is 90 18 x 5 = 90 18*5 = 90
subtract 90 from it and find the trig ratio of that and it will be equal to the trig ratio that is over 90 degrees