**Newton’s Angle**

Sir Issac Newton was examining an angle formed by two segments joined on a piece of paper. After using a protractor, he determined the measure (in degrees) of the angle to be one-fifth of the square root of forty-three less than the year he was born. Sir Issac Newton uses his magnifying glass that magnifies everything three and one-half times the original size to view this angle. What is the angle measure (in degrees) while viewing it under the magnifying glass?

Source: mathcontest.olemiss.edu 4/5/2010

**SOLUTION**

If you draw a right angle on a piece of paper and then look at it through a magnifying glass, it still looks like a right angle. Magnifying glass increases the size of objects but preserves the angles made by the objects.

Newtons’ birth year is 1643. Thus, the measure of the angle is

.

**Answer**: .

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Retired high school math teacher.