Hj and jk are the same length line segments ( because the midpoint divides a line into two equal parts)
So hj = jk.
hk is the line segment which has the mid point j. It is the double of hj or jk. It can be the sum of hj and jk.
hj + jk = hk
or
2 * hj = hk
or
2 * jk = hk
Oh all u do is just do the triangle the subtract the square from that
2(2)+7-3(2)=
4+7-6= 5
your answer is 5
Circumference formula tells you

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The formula to find the area of a circle is

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