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Brilliant_brown [7]
2 years ago
11

Helllp please Find the area of The following figures. Dimensions are in centimeters.

Mathematics
2 answers:
lukranit [14]2 years ago
5 0

Answer:

\huge\mathfrak\red{Answer...} \\  \\ area \: of \: square \:  = side {}^{2} \\  \\  side = \: 6 \: cm   \\  \\ area \: of \: square \:  = 6 \times 6 \\  \\ area \: of \: square \:  = 36 \: cm.sq \\  \\ area \: of \: semicircle \:  = (1 \div 2)\pi \: r {}^{2}  \\  \\ radius = 2 \: cm \\  \\ area \: of \: semicircle = 6.28 \: cm.sq \\  \\ area \: of \: whole \: figure \:  = 36 + 6.28 \\  \\ area = 42.28 \: cm.sq

AleksAgata [21]2 years ago
3 0

Answer:

Seperate the shapes!

Step-by-step explanation:

CIRCLE

First we want to find the area of the circle which would be:

\pi r^{2}

3.14159265359 x 2^{2}

3.14159265359 x 4cm

= 12.5663706144cm^{2} /2 (must divide by two because it is half of a circle)

= 6.28318530718cm^{2}

RECTANGLE/SQUARE

Find the area of the square.

AREA = L x W

Length =  2cm + ?

Width = 6cm

To find the length we must use the diameter of the circle (which is the radius but times it by 2)

To find diameter: r x 2

= 2cm x 2

= 4cm

Length = 4 + 2 = 6cm

Width = 6 cm

Area (Length x Width) = 6cm x 6cm

= 36cm^{2}

TOTAL AREA:

Just add the area of the circle and the area of the square together.

Area total = 36cm^{2} + 6.28318530718cm^{2}

= 42.2831853072cm^{2}

* Also round your total answer to the nearest tenth or hundreth if needed to do so.

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Answer:

                x_{1} =-14\\\\x_{2} =6

Step-by-step explanation:

x^{2} +8x-84=0\\\\x=\dfrac{-b \pm \sqrt{b^{2}-4ac } }{2a} \\\\a=1; \: \: b=8; \: \: c=-84\\\\x=\dfrac{-8 \pm \sqrt{8^{2}-4 \cdot 1 \cdot (-84) } }{2 \cdot 1}=\dfrac{-8 \pm \sqrt{400 } }{2}=\dfrac{-8 \pm20}{2} =-4 \pm 10\\\\x_{1} =-14\\\\x_{2} =6

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3 years ago
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Hi there!

The word "of" is the same thing as a multiplication sign.

1)

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2)

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There you go! I really hope this helped, if there's anything just let me know! :)

7 0
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