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GradePerimeter formula

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The perimeter of a \[\vartriangle ABC\] is \[6\] times the arithmetic mean of the sines of its angles. If the side a is \[1\] ,then the angle A is

\[\left( A \right){\text{ }}\dfrac{\pi }{6}\]

\[\left( B \right){\text{ }}\dfrac{\pi }{3}\]

\[\left( C \right){\text{ }}\dfrac{\pi }{2}\]

\[\left( D \right){\text{ }}\pi \]

\[\left( A \right){\text{ }}\dfrac{\pi }{6}\]

\[\left( B \right){\text{ }}\dfrac{\pi }{3}\]

\[\left( C \right){\text{ }}\dfrac{\pi }{2}\]

\[\left( D \right){\text{ }}\pi \]

The total surface area of a triangular based prism is \[576c{{m}^{2}}\] and its height is 22cm. IF the area of its base is \[24c{{m}^{2}}\], find the perimeter of its base.

Find the perimeter of the sector of a circle of radius 14cm and angle ${45^0}$.

A group of friends is walking around a tract that is shaped like a regular pentagon. Each side measures 85 metres. If they make 3 complete trips around the track, how far will they have walked?

Fill in the blanks: -

The unit of measurement of perimeter is the same as that of _____.

The unit of measurement of perimeter is the same as that of _____.

Find the perimeter of

(i)$\Delta ABC$

(ii) rectangle $BCDE\;$

A.$\left( i \right)8\dfrac{1}{60}cm\text{ }\left( ii \right)5cm\;$

B. $\left( i \right)5cm\text{ }\left( ii \right)10\dfrac{1}{6}cm$

C. $\left( i \right)8\dfrac{1}{60}cm\text{ }\left( ii \right)10\dfrac{1}{5}cm$

D. $\left( i \right)8cm\text{ }\left( ii \right)23cm$

(i)$\Delta ABC$

(ii) rectangle $BCDE\;$

A.$\left( i \right)8\dfrac{1}{60}cm\text{ }\left( ii \right)5cm\;$

B. $\left( i \right)5cm\text{ }\left( ii \right)10\dfrac{1}{6}cm$

C. $\left( i \right)8\dfrac{1}{60}cm\text{ }\left( ii \right)10\dfrac{1}{5}cm$

D. $\left( i \right)8cm\text{ }\left( ii \right)23cm$

What is the perimeter of the track, in meters? Assume that $ \pi = 3.14 $ and round to the nearest hundredth of a meter?

A small square of side 1 cm is cut off from each of its corners. Will the perimeter change?

ABCD is a square of area of $ 4 $ square units which is divided into $ 4 $ non overlapping triangles as shown in figure, then sum of perimeters of the triangles so formed is

A. $ 8(2 + \sqrt 2 ) $

B. $ 8(1 + \sqrt 2 ) $

C. $ 4(1 + \sqrt 2 ) $

D. $ 4(2 + \sqrt 2 ) $

A. $ 8(2 + \sqrt 2 ) $

B. $ 8(1 + \sqrt 2 ) $

C. $ 4(1 + \sqrt 2 ) $

D. $ 4(2 + \sqrt 2 ) $

Find the perimeter of the given figure.

Ramesh wants to build a fence around the right angled triangular garden in his backyard. The perpendicular sides of the garden are measured and found to be $2 m$ and $1m$ long. He goes to the local store to buy the fencing. What is the perimeter of the garden in meters? When he went to the store, he came to know that the store sells fencing in tenths of a meter i.e. decimetre. Thus what length of fencing should Ramesh ask for?

Find the length of the perimeter of a regular decagon which surrounds a circle of radius $ 12cm $

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