Practice Problems
By: Jack Eike
Problem #1: Find m<A Round to the nearest tenth.
First, we know the equation that the secant segment outside the circle times the whole length of the secant is equal to the other. So, we must put that equation into effect.
12(62)=2x(12x) Now, we simplify.
744=24x^2 Now, we divide by 24.
31=x^2 Now we must square root the equation.
sqrt31 equal to x.
Now, we know that the outer arc minus the inner arc over 2 is equal to that angle. So we input the values and solve.
(2sqrt31)-5/2=m<A
3.1 is about equal to m<A
First, we know the equation that the secant segment outside the circle times the whole length of the secant is equal to the other. So, we must put that equation into effect.
12(62)=2x(12x) Now, we simplify.
744=24x^2 Now, we divide by 24.
31=x^2 Now we must square root the equation.
sqrt31 equal to x.
Now, we know that the outer arc minus the inner arc over 2 is equal to that angle. So we input the values and solve.
(2sqrt31)-5/2=m<A
3.1 is about equal to m<A
Problem #2: Find m<A.
First we know that the four arc measures are each 30 with a total of 120, leaving 240 degrees left in the circle. So that means that the two remaining arc measures are 120. We know that an inscribed angle is half of the arc measure so if the total arc measure that the inscribed angle breaks off is 120+60, then the total arc measure is 180 and 180/2 is 90. The measure of the inscribed angle or <A is 90.
First we know that the four arc measures are each 30 with a total of 120, leaving 240 degrees left in the circle. So that means that the two remaining arc measures are 120. We know that an inscribed angle is half of the arc measure so if the total arc measure that the inscribed angle breaks off is 120+60, then the total arc measure is 180 and 180/2 is 90. The measure of the inscribed angle or <A is 90.
Patrick's Problems-
practice_problems_unit_8.pdf | |
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Practice Problems-Christina Cui
Practice Problems By: Hannah Lee
The links to my two practice problems are below:
Practice Problem #1: http://prezi.com/0aa0_5ff1tom/?utm_campaign=share&utm_medium=copy&rc=ex0share
Practice Problem #2: http://prezi.com/j-lzkgqctpnc/?utm_campaign=share&utm_medium=copy&rc=ex0share
Practice Problem #1: http://prezi.com/0aa0_5ff1tom/?utm_campaign=share&utm_medium=copy&rc=ex0share
Practice Problem #2: http://prezi.com/j-lzkgqctpnc/?utm_campaign=share&utm_medium=copy&rc=ex0share