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CBSE
Mathematics
Perimeter formula
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
$\left( A \right){\text{ }}\dfrac{\pi }{6}$
$\left( B \right){\text{ }}\dfrac{\pi }{3}$
$\left( C \right){\text{ }}\dfrac{\pi }{2}$
$\left( D \right){\text{ }}\pi$
CBSE
Mathematics
Perimeter formula
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.

CBSE
Mathematics
Perimeter formula
Find the perimeter of the sector of a circle of radius 14cm and angle ${45^0}$.
CBSE
Mathematics
Perimeter formula
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?

CBSE
Mathematics
Perimeter formula
Fill in the blanks: -
The unit of measurement of perimeter is the same as that of _____.
CBSE
Mathematics
Perimeter formula
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. $\left( i \right)8cm\text{ }\left( ii \right)23cm$
CBSE
Mathematics
Perimeter formula
What is the perimeter of the track, in meters? Assume that $\pi = 3.14$ and round to the nearest hundredth of a meter?

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

CBSE
Mathematics
Perimeter formula
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. $4(2 + \sqrt 2 )$
CBSE
Mathematics
Perimeter formula
Find the perimeter of the given figure.

CBSE
Mathematics
Perimeter formula
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?
CBSE
Mathematics
Perimeter formula
Find the length of the perimeter of a regular decagon which surrounds a circle of radius $12cm$

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