if you're an architect, or for later math (a lot in precal.. etc). also u need it for SAT stuff like that. not just academics tho. general knowledge about angles is good for everyday life like when you're putting stuff away, etc.
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You have it in reverse. Scientific notation is useful for measuring stars.
A protractor is the most accurate way of measuring angles.
A protractor is the common tool used in mathematics for measuring and drawing angles.
unit in earth science used for measuring angles in a circle or sphere?
A triangle with 1 side only measuring 4 inches can have two of its angles measuring 55° and 35°. The side would be either the hypotenuse or one other other sides of a right angled triangle. NOTE : A triangle with two of the three sides measuring 4 inches cannot have one of its angles measuring 55° and one other measuring 35° as the two sides of equal length would define it as an isosceles triangle. Therefore two of its angles are equal. If the two equal angles measured 35° each, then the third angle would equal 110°. If the two equal angles measured 55° each then the third angle would equal 70°. A triangle with all three sides measuring 4 inches has all three angles measuring 60° . It is an equilateral triangle.