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Given Perimeter and Two Base Angles

State true or...

Question

State true or false:
The area of $△ A B C$ in which $A B = B C = 4 c m$ and $∠ A B C = 60^{0}$ is $6.93 c m^{2}$ , approximately.

True

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False

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Solution

The correct option is A True
Area $= \frac{\sqrt{3}}{4} a^{2} = \frac{\sqrt{3}}{4} (4)^{2} = 6.93 c m^{2}$

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