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azamat
1 year ago
11

Please solve quickly ​

Mathematics
2 answers:
masya89 [10]1 year ago
5 0

Answer:

13.8 sq.cm

Step-by-step explanation:

Area of shaded region = area of square - area of 4 quater circles

(4 quater circles=1 circle)

= area of square - area of one circle

= s^2 - πr^2

= 8×8 - 3.14 × 4×4 (<em>r </em><em>=</em><em> </em><em>4</em><em>c</em><em>m</em><em> </em><em>because</em><em> </em><em>radius </em><em>is </em><em>half </em><em>of </em><em>the </em><em>side </em><em>of </em><em>square</em><em>)</em>

= 64 - 3.14 ×16

= 64 - 50.24

= 13.76

Nearest tenth of 13.76 is 13.8

shtirl [24]1 year ago
3 0

Answer:

41.2 cm^2

Step-by-step explanation:

Square area = 8x8 = 64 cm^2

The sum of the 4 white areas is a circle of radius r = 4cm

The area of the circle is \pi r^{2} = 16\pi = 22.8 cm^2

The yellow region is the difference = 64 - 22.8 = 41.2 cm^2

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