I think the answer is 14 hope this helps
The arc length of the partial circle is 7.5π
<h3>Calculating arc length</h3>
From the question, we are to determine the arc length of the partial circle
The length of an arc can be calculated by using the formula

Where
is the length of the arc
is the angle subtended
and r is the radius
From the diagram,
θ = 270°
r = 5
Putting the values into the equation, we get



OR 7.5π
Hence, the arc length of the partial circle is 7.5π
Learn more on Calculating arc length here: brainly.com/question/16552139
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Answer:
10.7 m
Step-by-step explanation:
Answer: 35 units^2
Step-by-step explanation: The trick is not to try and calculate the area of the triangle, but the spaces around it. Calculate all the white triangles in the rectangle then subtract them to the rectangle.
14*3/2=21
8*8/2=32
6*8/2=24
21+32+24=77
8*14=112
112-77=35
<u>Part a) </u>
we know that
An isosceles triangle has two base angles that are congruent
The sum of two base angles plus the vertex angle is equal to
degrees
so
In this problem



Solve for x




therefore
<u>the answer part a) is</u>
the value of x is 
<u>Part b)</u> What is the measure of each base angle?
we know that

we have that

substitute the value of x in the equation


therefore
<u>the answer part b) is </u>
the measure of each base angle is 