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
fiasKO [112]
3 years ago
8

What is the area of a circle with a radius of 21 cm?

Mathematics
2 answers:
Lina20 [59]3 years ago
3 0

Answer:

1384.74cm squared

Step-by-step explanation:

A= πr²

Igoryamba3 years ago
3 0
Last one 1384.74 jajajajajajaja
You might be interested in
Find the area of the right triangle. If necessary, round to the nearest tenth
Ad libitum [116K]

Answer:

B. 150 yards

Step-by-step explanation:

Area of a Triangle = .5 * Base * height

So we need the height of the triangle, or the missing side.

We have to use Pythagorean Theorem to solve this:

A^2 + B^2 = C^2

15 ^ 2 + B ^ 2 = 25 ^2

b^2 = 25^2 - 15 ^ 2

b^2 = 625 - 225

b^2 = 400

sqrt (400) = 20

The missing height is 20. Now we plug it into 1/2 * b * H

.5 * 15 * 20

7.5 * 20 = 150

150 Yds

6 0
3 years ago
The cost of the rental space is $780 and<br> the price per person for food is $9.75
solmaris [256]

Answer:

80.

Step-by-step explanation:

780÷9.75 = 80.

80 people can stay in the rental space.

3 0
3 years ago
Mt. Pleasant elemantry School was collecting canned food. The chart below shows how much food they collected over 3 weeks the ca
n200080 [17]
Just -: by 8 I think
4 0
3 years ago
PLZ HELP ME I WILL GIVE BRAINLIEST....
guapka [62]

Answer:

A. 2, 3, and 4

B: 4

Step-by-step explanation:

4 0
3 years ago
Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose
Vlad [161]

Answer:

The dog lost 4.8 pounds! Goodluck!


Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
Other questions:
  • How many times larger is 2 x 10-6 than 2 x 10-11? A) 1 x 104 B) 1 x 105 C) 2 x 104 D) 2 x 105
    5·1 answer
  • Find an ordered pair to represent t in the equation t=1/2u+v if u=(-1,4) and v=(3,-2)
    9·2 answers
  • Answer the question and explain how did you get the answer. answer number 10.
    12·1 answer
  • The angle turns through 1/6 of the circle. What is the measure of the
    13·1 answer
  • Which ratio is equal to the number π
    7·1 answer
  • Solve 4,500 ÷ 9 = using metal agh
    14·2 answers
  • A portrait without its frame has a height two times it’s width (w) The width of the frame is 3 inches on all sides. What is the
    15·1 answer
  • The temperature at 6:00 p.m was 24 f. at midnight the temperature was 36 f. lower than 6:00 pm . what was the temperature at mid
    15·1 answer
  • maurice bought a car costing £8248. he paid a deposit of £1975 and 6 monthly instalments of £511. estimate the amount maurice st
    11·1 answer
  • Hi! Could you help me?? I’m stuck on this one
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!