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find the perimeter of given figure:
[the answer in book is given 18cm but it doesnt matches] please help me​

find the perimeter of given figure the answer in book is given 18cm but it doesnt matches please help me class=

Respuesta :

Banabanana

Answer:

≈ 18 cm

Step-by-step explanation:

1.  Find the length of half a circle of radius 3.5 cm:

[tex]\tt \cfrac{C}{2}= \cfrac{2\pi r}{2}=\pi r=3.14\cdot3.5=10.99 \ cm[/tex]

2.  Find the length of the diameter:

D = 2r = 2 · 3.5 = 7 cm

3. Find the perimeter of the figure:

P = 10.99 + 7 = 17.99 ≈ 18 cm

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