1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Harman [31]
3 years ago
5

I need help. So it says to find the shaded area, and I'm not really good a things like this

Mathematics
2 answers:
Tcecarenko [31]3 years ago
4 0

Step-by-step explanation:

Given,

One side of the square = 20 cm

Therefore, Area of the square = side × side

= 20 cm × 20 cm

\:  \:  \:  \:  \:  \:  \:  \:  = 400 {cm}^{2}

Also, known that

One side of the square = Diameter of the circle = 20 cm

So, radius of the circle = 20/2 cm = 10 cm

Therefore, area of the square

\:  \:  \:  \:  \: \ \:  \:  \:  \:  = \pi{r}^{2}

= 3.14 \times  {(10cm)}^{2}

= 3.14 \times 100 {cm}^{2}

= 314 {cm}^{2}

Hence, area of the shaded region is

= Area of the square. - Area of the circle

= 400 {cm}^{2}  - 314 {cm}^{2}

= 86 {cm}^{2} (ans)

krek1111 [17]3 years ago
3 0

Answer:

86 cm²

Step-by-step explanation:

<u>1) Calculate the area of the square</u>

A=lw\\A=20*20\\A=400

Therefore, the area of the square is 400 cm².

<u>2) Calculate the area of the circle</u>

A=\pi r^2\\

\pi we can substitute with 3.14. To find the radius, we divide the diameter of the circle by 2. 20 cm is the diameter of the circle, so therefore, its radius is 10 cm.

A=3.14*10^2\\A=3.14*100\\A=314

Therefore, the area of the circle is 314 cm².

<u>3) Subtract the area of the circle from the area of the square</u>

A=400-314\\A=86

Therefore, the area of the shaded region is 86 cm².

I hope this helps!

You might be interested in
What is 52000-53800=? Show work
solmaris [256]
   53800
 - 52000
-------------
      1800
8 0
3 years ago
A car is moving at a average speed of 56 hole 3/5 km per hours . How much distance will it cover in 7 hole 1/2 hours?​
vovikov84 [41]

Answer:

3.5km

Step-by-step explanation:

not sure but this is how I'll do it tho

distance= 7 x 1/2 = 3.5 (km)

5 0
3 years ago
If the product of two rational numbers is (-9/16) and one of them is (-4/15) find the other number.​
ololo11 [35]

Given:

  • The product of two numbers is (-9/16).
  • One of the numbers is (-4/15)

To find: The other number.

Answer:

Let's assume the unknown number to be 'x'.

(-4/15) × x = (-9/16)

× = (-9/16) ÷ (-4/15)

When we divide a fraction by another fraction, the divisor will be taken in its reciprocal form.

x = (-9/16) × (-15/4)

x = 135/64

Therefore, the other number is 135/64.

Hope it helps. :)

8 0
3 years ago
Lexi needs 144 beads.A large box holds 100 beads.A medium box holds 10 beads.a small box holds 1 bead.lexi already had 1 large b
saveliy_v [14]

The total number of beads that Lexi could accommodate based on the on hand items is 101 beads. Subtract the number of beads she needs which is 144 beads with 101 beads. The amount of beads that would need a box is 43 beads. Since a medium box could only accommodate 10 beads at a time, divide 43 with 10 and the answer would be 4 remainder 3. Thus Lexi would only need 4 medium boxes. 

3 0
3 years ago
What do all of the numbers in the box below have in common 60% 0.57 0.9 120%
RideAnS [48]

Answer:

First of all, the numbers are all positive numbers

They can all be divided by the number 3

They are all rational numbers, this means that they can be expressed as a ratio of two numbers

8 0
3 years ago
Other questions:
  • Which phrase describes the algebraic expression StartFraction 7 over 8 EndFraction y minus 3?
    9·2 answers
  • bhagawati borrows Rs 3000 at 8% simple interest and invests the same amount of money at 10% compound interest. if the transactio
    8·1 answer
  • Solve the inequality. 9n ≤ –27
    9·1 answer
  • What is -2 + 5 equals??
    8·2 answers
  • What is the area? Plz show me step by step. :)
    15·1 answer
  • Can someone check my answers if they are correct or incorrect? If it is incorrect, please let me know why it is incorrect please
    11·1 answer
  • Diego wondered how far sixth-grade students could throw a ball. He decided to collect data to find out. He asked 10 friends to t
    10·1 answer
  • Is the ordered pair (4, -2) a solution to this system? Explain why or why not.
    7·1 answer
  • You have invested $2000 at 3.75% annual interest.<br> How much money do you have after 20 years?
    13·1 answer
  • Hanson and his classmates placed colored blocks on a scale during a science lab. The blue block weighed 8.1 pounds and the green
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!