Question

What is the formula of perimeter of triangle perimeter of rectangle and perimeter of square

Answer 1

$\huge\underline\green{Answer}{:-}$

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• Perimeter = Sum of all sides .

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• Perimeter of triangle = Side + base + Side

$\bold\red{Example:-}$

Side = 6 cm

Base = 10 cm

Side = 2 cm

Perimeter = 6 + 10 + 2 = 18 cm Ans.

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• Perimeter of Rectangle = 2( L + B )

$\bold\red{Example:-}$

Length = 15 m

Breadth = 6 m

Perimeter = 2(15 + 6)

⠀⠀⠀⠀ ⠀⠀= 2 x 21 = 42 m Ans.

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• Perimeter of Square = 4 x Side

$\bold\red{Example:-}$

Side = 4 m

Perimeter = 4 x 4 = 16 m Ans.

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⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀Bє Bяαiиℓγ

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Answer 2

Answer:

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Step-by-step explanation:

perimeter of triangle=sum of all sides

perimeter of rectangle = 2lenght+2breadth= 2(l=b)

perimeter of square= sum of all 4 sides =4*sides