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F• 110°

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The opposite angles in ANY inscribed quadrilateral are supplementary.
The measure of an inscribed angle is quadrilateral are supplementary ½ start fraction, 1, divided by, 2, end fraction of the measure of the arc that it intercepts.

m∠P = ½ (m FL⌢ + m LI ⌢ )
m∠P = ½ (m IP ⌢ + m PF ⌢ )

thats not a system of equations, that is a solution

35/2 is it i think maybe

perimeter = 10 +  √10  units

explanation:

first, we will need to get the length of each line using the distance formula which is as follows:

distance = 

1- length of ab:

ab =   = 5 units

2- length of ac

length of ac is the same as ab = 5 units

3- length of bc:

bc =   =  √10  units

now, we can get the perimeter by adding the side lengths as follows:

perimeter = 5 + 5 +  √10

perimeter = 10 +  √10  units

hope this : )

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