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Lostsunrise [7]
2 years ago
10

This shape is made using three semicircles The smaller semicircle have diameters of 10cm Calculate the shaded area Take 3.142 an

d write down all the digits given be the calculator​

Mathematics
1 answer:
AleksandrR [38]2 years ago
6 0

Answer:

The shaded area is 314.2 cm²

Step-by-step explanation:

Here we note that the shape consists of two small circles and one larger circle

The diameter of the larger semicircle is subtended by the two smaller semicircles, the small semicircle closer to the left of the internal circumference of the larger semicircle is shaded one while the one on the right is without color,

Therefore,

Diameter of larger semicircle = 2 × 10 = 20 cm

Based on the diagram, the shaded area is observed to be;

Shaded area = Area of semicircle formed by larger diameter or 20 cm + Area area formed by the small semicircle close to the right of the internal circumference of the larger semicircle - Area area formed by the other smaller semicircle

Since the diameter and therefore the areas of the two small semicircles are equal, we have;

Shaded area = Area formed by the complete larger semicircle = Area of semicircle formed by larger diameter or 20 cm

∴ Shaded area = π·D²/4 = π×20²/4 = 100×3.142 cm² = 314.2 cm².

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IRISSAK [1]

Answer:

See below for answers and explanations

Step-by-step explanation:

4! = 4*3*2*1 = 24

0! = 1

2! + 3! = 2*1 + 3*2*1 = 2 + 6 = 8

3! * 4! = 3*2*1 * 4*3*2*1 = 6 * 24 = 144

10! / 7! = 10*9*8*7*6*5*4*3*2*1 / 7*6*5*4*3*2*1 = 10*9*8 / 1 = 720

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2 years ago
PQRS is a quadrilateral.
olga nikolaevna [1]

Answer:

y = 95° (being corresponding angle)

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3 years ago
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Name at least two independent variables that could result in a change in the price of a basket of apples.​
Novay_Z [31]

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In an experimental study looking at classical music exposure and reading ability in children, the researcher divided the children into two groups (Groups A and B

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2 years ago
I need to know how to simplify the sqrt or 432
Arlecino [84]

Answer:

\sqrt{16 \times9 \times 3  \:   \: equals \:4 \times 3 \times  \sqrt{3that \: eauas \: 12 \sqrt{3} } }

Step-by-step explanation:

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square root of 16 =4

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That will equal 4×3× square root of 3 which finally equals to 12 square root of 3.

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3 years ago
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Determine the equation
sergejj [24]

Answer:

y=\frac{3}{4} x-\frac{5}{4}

Step-by-step explanation:

two points on the line are

(-1, -2)

(-5, -5)

The slope:

m=\frac{-2-(-5)}{-1-(-5)} =\frac{-2+5}{-1+5} =\frac{3}{4}

The equation:

with (-1,-2)

y-(-2)=\frac{3}{4} (x-(-1))

y+2=\frac{3}{4} x+\frac{3}{4}

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Hope this helps

8 0
2 years ago
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