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KATRIN_1 [288]
4 years ago
8

A square is cut out of a circle whose diameter is approximately 14 feet. What is the approximate area (shaded region) of the rem

aining portion of the circle in square feet?
A.25 feet
B.40 feet
C.50 feet
D.80 feet

Mathematics
2 answers:
Nuetrik [128]4 years ago
5 0

Answer:

C

Step-by-step explanation:

area if squre is πr^2

so...

\pi {r}^{2}  = 3.14 \times 7 \times 7 = 153.86 {ft}^{2}

r means radius and...radius is diameter/2

now we must subtract the area of the square

{a}^{2}  = 10 \times 10 = 100 {ft}^{2}

153.86 - 100 = 53.86 {ft}^{2}

nearest answer is 50

slava [35]4 years ago
5 0

Answer:

Step-by-step explanation:

r = 14/2 = 7 feet

Area of circle=πr²=22*7*7/7 = 22*7= 154 sq. feet

Area of square = side*side = 10*10 =100

Area of shaded region = Area of circle - Area of square

    =154 - 100 = 54 sq. feet ≈ 50 sq. feet

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8 0
3 years ago
If m = 80° and m = 40°, then m 2 =<br><br> A)20<br> B)40<br> C)60
RoseWind [281]

Answer:

I think its 40 I could be wrong

Step-by-step explanation:

I had subtract 80 and 40

5 0
3 years ago
What is the surface area of the cube?
Marysya12 [62]

Answer:

C

Step-by-step explanation:

Rule: 6*Side (Twice)

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3 0
3 years ago
Angle a =8x+6 <br> Angle b= 4x+38<br> Solve for x and find the measure of angle b
Savatey [412]

Answer:

Angle\ b= 70\°

Step-by-step explanation:

<u><em>The correct question is</em></u>

Angle a and angle b are vertical angles

Angle a =8x+6

Angle b= 4x+38

Solve for x and find the measure of angle b

we know that

<u><em>Vertical Angles</em></u> are the angles opposite each other when two lines cross. They are always congruent.

m∠a=m∠b -----> by vertical angles

substitute the given values

(8x+6)\°=(4x+38)\°

solve for x

8x-4x=38-6

4x=32

x=8

<em>Find the measure of angle b</em>

Angle\ b= (4x+38)\°

substitute the value of x

Angle\ b= (4(8)+38)\°

Angle\ b= 70\°

3 0
3 years ago
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