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raketka [301]
3 years ago
14

(will mark brainliest if correct)

Mathematics
1 answer:
weqwewe [10]3 years ago
3 0

Answer:

A = 27π

P =

Step-by-step explanation:

Well if it follows the same proportions as a square then the dotted line is 6 cm.

<u>                                                       Triangle                                                                </u>

So the area of a triangle is b*h / 2

b = 6

h = 6

6*6 = 36

36 / 2 = 18

A = 18cm^2

So to find the missing side or c we do 6^2 + 6^2 = c^2,

36 + 36 = c^2

72 = c^2

≅<u>8</u>

6 + 6 + 8

= 20cm

<u>                                                        Half circle                                                                  </u>

Now the area of a semicircle is,

pi r^2 / 2

So if the diameter is 6 then the radius is 3.

So we do 3*3 = 9

9 * pi = 9π^2

Perimeter: 6π

____________________________________________________________

<em>Thus,</em>

<em>the area is 27π and the perimeter 26π. </em>

<em />

<em>Hope this helps :)</em>

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