A circle is drawn within a square as shown. What is the best approximation for the area of the shaded region? Use 3.14 to approx
imate pi.
2 answers:
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From the inscribed circle, AE and AD are the radius of the circle while BE and BD are the tangents.
<h3>What is an inscribed circle?</h3>An inscribed circle simply means the largest circle that's contained in a triangle.
An inscribed circle touches its tangent to the three sides. In this case, AE and AD are the radius of the circle while BE and BD are the tangents. Also, angle ABE and ABD are 60°.
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Invested amount in a government bond = $50.
Total returned amount after 1 year =$54.
We need to find the amount of interest earned first.
Amount of intrest earned in a year = Total returned amount after 1 year - Invested amount in the government bond.
Therefore, Amount of intrest earned in a year = $54 - $50.
= $4.
Therefore, earned interest is $4 in an year.
Now, we need to find the intrest rate.
We know the formula,
Plugging values in above formula, we get
Rate of interest =
Dividing 100 by 50, we get 2.
Therefore, Rate of Interest (ROI) = 8% per year.