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
denis23 [38]
2 years ago
6

The diameter of a circle is 20 cm. Find its area in terms of \piπ

Mathematics
1 answer:
Dominik [7]2 years ago
8 0

Answer:

Step-by-step explanation:

Diameter = 20 cm

Radius = r = 20 ÷ 2 = 10 cm

\boxed{\text{Area of circle =$\pi r^{2}$   }}

                      = π *10 * 10

                     = 100π cm²

You might be interested in
You roll a dice three times what is the probability that you roll an even number on the first roll, and odd on the second roll a
Dafna1 [17]
<h3>Answer:</h3>

D. 1/24

<h3>Step-by-step explanation:</h3>

Assuming the die is fair and the events are independent, the probability of the series of events is the product of the probabilities of the individual events.

p(even) = 3/6 = 1/2

p(odd) = 3/6 = 1/2

p(5) = 1/6

Then the joint probability is ...

.. (1/2)·(1/2)·(1/6) = 1/24

7 0
4 years ago
How do you solve this?
motikmotik
Pemdas helps so first you do Parentheses Exponet multiply divide add and subtract
3 0
3 years ago
Read 2 more answers
A training field is formed by joining a rectangle and two semicircles, as shown below. The rectangle is 89m long and 70m wide.
Sindrei [870]

Step One

Find the area of the rectangle

Area = L * W

Area = 89 cm * 70 cm

Area = 6230 cm^2

Step Two

What is the formula for the two end semicircles?

Two semicircles = 1 whole circle

Area of any circle = pi * r^2

Step Three

Find the area of the circle

r = the width / 2     This may not be true. You need the diagram. If the circles are drawn on the length then use r = the length / 2

r = 70/2  = 35 cm

Area of circle = pi * r^2

Area of circle = 3.14 * 35^2

Area of circle = 3846.5

Step Four

Find the total area

The total area = Area of the rectangle + area of circle

The total area = 6230 + 3846.5

The total area = 10076.5 cm^2 <<<< Answer

3 0
3 years ago
Karen and Bill collect coins. Karen has x coins. Bill has 9 coins fewer than two times the number of coins Karen has. Write and
Eduardwww [97]
Karen = x
bill = 2x - 9
total = x + 2x - 9 = 3x - 9
6 0
2 years ago
The school cafeteria surveyed students to see what their favorite lunch is, and the
Sergio039 [100]

Answer:

40%

Step-by-step explanation:

Degree representing students who prefer burgers = 144°

Percentage of students who like burger = \frac{144}{360} \times 100

= 0.4 \times 100

= 40 percent

Percentage of students who offered burger = 40%

3 0
3 years ago
Other questions:
  • How do I decompose the number 740
    12·1 answer
  • What do same side exterior angles add up to
    11·1 answer
  • Nina is 10 years younger than deepak. Deepak is 3 times as old as Nina. Which system of equations can be used to find d,deepaks
    13·2 answers
  • if 620 more plants are brought to the nursery and are arranged with the original 1,207 plants in the 7 rows, how many plants wil
    11·2 answers
  • There arw 8 pencils in a package how many packages will be needed for 28 students if wach child gets 4 pencils
    8·1 answer
  • Can u give an explanation for the answer
    6·1 answer
  • the area of a Trapezium is 132 cm². Its height is 14 cm the larger parallel side is longer than the other by 16 cm. find the len
    11·1 answer
  • <img src="https://tex.z-dn.net/?f=%20%5Chuge%20%5Ccolor%7Borange%7D%5Cmathbb%7BQUESTION%7D%20" id="TexFormula1" title=" \huge \c
    11·2 answers
  • 427 diveided by 3 do you have any aneswerers
    15·2 answers
  • 2.* Use the slope (m) and y-intercept (b)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!