In the given figure, ABC is an equilateral triangle which is inscribed inside a circle and whose radius is r. Which of the following is the area of the triangle ?

${\left( {r + DE} \right)^{\frac{1}{2}}}{\left( {r - DE} \right)^{\frac{3}{2}}}$$

${\left( {r - DE} \right)^{\frac{1}{2}}}{\left( {r + DE} \right)^2}$$

${\left( {r - DE} \right)^2}{\left( {r + DE} \right)^2}$$

${\left( {r - DE} \right)^{\frac{1}{2}}}{\left( {r + DE} \right)^{\frac{3}{2}}}$$

In the given figure, ABC is an equilateral triangle which is inscribed

1.	In the given figure, ABC is an equilateral triangle which is inscribed inside a circle and whose radius is r. Which of the following is the area of the triangle ?
A.	${\left( {r + DE} \right)^{\frac{1}{2}}}{\left( {r - DE} \right)^{\frac{3}{2}}}$$
B.	${\left( {r - DE} \right)^{\frac{1}{2}}}{\left( {r + DE} \right)^2}$$
C.	${\left( {r - DE} \right)^2}{\left( {r + DE} \right)^2}$$
D.	${\left( {r - DE} \right)^{\frac{1}{2}}}{\left( {r + DE} \right)^{\frac{3}{2}}}$$
Answer» E.

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In the given figure, ABC is an equilateral triangle which is inscribed inside a circle and whose radius is r. Which of the following is the area of the triangle ?

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