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2 years ago

14

If the side of every square is 2 centimeters, how many centimeters is the circumfence of the figure?

1 answer:

Mandarinka [93]2 years ago

3 0

Answer:

<h2> 76 cm</h2>

Step-by-step explanation:

$|FE| = |CB| = 4\cdot2=8\,cm\\\\|ED|=|DC|= \sqrt{(3\cdot2)^2+(4\cdot2)^2}= \sqrt{6^2+8^2}=\sqrt{100}=10\,cm\\\\|FA|=|AB|= \sqrt{(6\cdot2)^2+(8\cdot2)^2}= \sqrt{144+256}=\sqrt{400}=20\,cm\\\\\\Circumference = FE+ED+DC+CA+AB+FA\\\\Circumference =8+10+10+8+20+20=76\,cm$

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It means : The Radius of the right circular cone is 4 cm (as Radius is half of the Diameter)

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$\bigstar \ \ \boxed{\textsf{Volume of a right circular cone is given by : $\pi r^2\dfrac{h}{3}$}}$

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