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Answered

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formula valid for all polygons: P =______________

formula valid for the rectangle: P=_____________

Measure: P=(15+_) x _ = _cm

Formula Valid For All Polygons P Formula Valid For The Rectangle P Measure P15 X Cm class=

Sagot :

Thishigopalidn

Answer:

perimeter = sum of all sides. this is same for polygons

rect: area l×b. peri = 2(l+b)

Step-by-step explanation:

15+5 = 20

20*2 = 40 cm is the perimeter of the given figure

AadhPritidn

Answer:

P = 40 cm

Step-by-step explanation:

Here,

  • We can see that the given polygon is a rectangle.
  • The length and breadth of rectangle is 15 cm and 5 cm.

As we know that the formula of perimeter of rectangle is :

[tex]\longrightarrow{\pmb{\tt{P = 2(L + B)}}}[/tex]

  • P = Perimeter
  • L = Length
  • B = Breadth

Substituting all the given values in the formula to find the perimeter of rectangle :

[tex]\begin{gathered} \qquad{\longrightarrow{\sf{P = 2(L + B)}}}\\\\\qquad{\longrightarrow{\sf{P = 2(15 + 5)}}}\\\\\qquad{\longrightarrow{\sf{P = 2(20)}}}\\\\\qquad{\longrightarrow{\sf{P = 2 \times 20}}}\\\\\qquad{\longrightarrow{\sf{P = 40}}}\\ \\ \qquad{\star{\underline{\boxed{\sf{ \red{P = 40 \: cm}}}}}}\end{gathered}[/tex]

Hence, the perimeter of rectangle is 40 cm.

[tex]\rule{300}{2.5}[/tex]

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