Solve for a by simplifying both sides of the equation, then isolating the variable.
a = 1
The Area of rectangle is "
" and the equation of the semi circle is "
".
According to the question,
The vertices of rectangle,
(5, 0) and (-5, 0)
Length,
l = 10 unit
Breadth,
b = 3 unit
Radius of semi circle,
r = 6
Centre of origin,
(0, 0)
As we know,
→ The Area of rectangle is:
= 
= 
= 
and,
→ The Equation of semi circle is,

by substituting the values, we get


Thus the above is the correct answers.
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