Answer:
Area= 24 and perimeter equals 12
Step-by-step explanation:
That depends upon what type of measurement you are looking for and what kind of an angle you are given. If you are looking for the measure of the arc in degrees AND the angle is a central angle, then the degree measure of the arc is the same as the degree measure of the central angle. If you are looking for the measure of the arc in degrees AND the angle you are given is inscribed, then the arc is double the degrees of the inscribed angle. If you are looking for the measure of the arc in units like inches or feet or meters, there is a formula for that:
where the angle theta is the degree measure of the central angle, and r is the radius of the circle. You have to know the radius to use this formula if what you are looking for is the arc length. If you don't know the radius this formula will be useless to you since you can't solve an equation with more than one unknown. Those are the ones you probably need to be most concerned with.
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<em>Hi there!</em>
<em>~</em>
<em>This question struck a chord with me as a highscooler. I never refer to the symbol x as an operator for multiplication because it too closely resembles a variable x. I only use a dot while indicating multiplication of two real numbers. Once students reach Algebra, the need for that is also limited.As far as the history goes, here's what I found: “Today elementary school students use the symbol × for multiplication. William Oughtred (1574-1660), a clergyman who gave free private lessons to pupils interested in mathematics, used the symbol × for multiplication. He also invented 150 other symbols. The × symbol was not readily accepted though. Gottfried Wilhelm Leibniz (1646-1716) thought it resembled the unknown x too much. Thomas Harriot (1560-1621) used the dot (·) for multiplication. This was not used much either until Leibniz adopted it.” It's no surprise that Leibniz was instrumental in the popularization of this notation, as much of the notation we use in Calculus was also developed by Leibniz. In short, there is no difference. Multiplication is a natural operation in mathematics and has just been symbolized in different people in different ways in different periods of time.</em>
<em>Hence they are both easy to use.</em>
<em>❀Hope this helped you!❀</em>
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A.
pb=4x+2+7x+7+5x-4
pb=16x+5
pp=x+3+x+7+2x-5
pp=4x+5
B.
pb-pp=16x+5-(4x+5)
pb-pp=16x+5-4x-5
pb-pp=12x
C.
pb(3)=16*3+5=53
pp(3)=4*3+5=17