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nikklg [1K]
3 years ago
14

Find the perimeter and area of this shape: please answer me​

Mathematics
1 answer:
Delicious77 [7]3 years ago
3 0

Answer:

perimeter = 32.28 cm

area = 47.7 cm²

Step-by-step explanation:

perimeter = sum of the lenght of the sides of the shape

and because we have a hollow in the shape that looks like a half a circle we will get the circumfrence of that part and add it to the rest

lets find the circumfrence or perimeter of the semi-circle first

6-(1+1)= 4

formula of a circle = πd = 3.14 x 4 =12.56

because its half a circle we divide by 2

12.56/2 = 6.28

perimeter = 1+6.28+1+9+6+9=32.28

because this shape look s like a rectangle we will find the area of the whole shape then subtract from the area of the semi-circle because it is a cut out

6 x 9 -(1/2πr²/)

54 - (1/2x3.14 x2x2)

54-6.28

area = 47.72cm²

Hope this helps and if it does mark as brainliest pls.thx

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