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
stepladder [879]
3 years ago
14

How far is a chord of length 8 cm from the centre of a circle of radius 5 cm

Mathematics
1 answer:
ivann1987 [24]3 years ago
8 0
  • Answer:

<em>OB = 3 cm</em>

  • Step-by-step explanation:

<em>AO = radius = 5 cm</em>

<em>AB = 8cm/2 = 4 cm</em>

<em>Pythagora</em>

<em>OB² = AO² - AB²</em>

<em>= (5cm)² - (4cm)²</em>

<em>= 25cm² - 16cm²</em>

<em>= 9 cm²</em>

<em>OB = √9cm²</em>

<em>= 3 cm</em>

You might be interested in
What would be the best way to select an unbiased population sample for the following topic: How do people get to
RoseWind [281]
Randomly survey 20 people
7 0
3 years ago
The surface are of a base ball is 177 cm squared. What is the diameter of the baseball (use 3.14 for pie)
erma4kov [3.2K]

Answer:

56.37

Step-by-step explanation:

5 0
3 years ago
I need help finishing a question. I used the explanation function on the program, but it didn't specify what to do to get the fi
leva [86]

I would compute sqrt(1 + 160pi^2) first to get approximately 39.75093337

Add this to 1 and we have 40.75093337

Then divide over 2pi to get a final approximate result of 6.48571248

So x = 6.48571248 is one approximate solution

In short, I computed \frac{1+\sqrt{1+160\pi^2}}{2\pi} only focusing on the plus for now.

----------------------

If you were to compute \frac{1-\sqrt{1+160\pi^2}}{2\pi} you should get roughly -6.167402596 as your other solution. Each solution can then be plugged into the original equation to check if you get 0 or not. You likely won't land exactly on 0 but you'll get close enough.

6 0
3 years ago
Read 2 more answers
Help i gotta get it turned in soon​
Katen [24]

Answer: Ill be glad to help but i need a better picture of the whole thing

Step-by-step explanation:

4 0
2 years ago
Can someone help me with this question?
Crazy boy [7]

Answer:

m<S' = 115

Step-by-step explanation:

A translation is when one shifts the image over on a coordinate plane. A translation doesn't affect the image itself. Hence m<S is the same as m<S'. Therefore m<S' = 115

4 0
3 years ago
Read 2 more answers
Other questions:
  • Let f(x)=3x^2-x+2 and g(x)= 5x^2-1. find f(g(x))
    6·2 answers
  • Evaluate 8-m/n +m when m=8 and n=2
    12·1 answer
  • I don’t understand this
    13·1 answer
  • What is the coefficient of x in 4x/5 a)1/5 b.5 c.4/5 d.4 e.-0.8
    8·2 answers
  • X2 + 4x – 2 .
    6·1 answer
  • A bag contains 3 green marbles and 8 white marbles. Suppose a marble is randomly selected. What are the odds in favor of picking
    14·2 answers
  • As an estimation we are told £3 is €4.<br> Convert £27 to euros
    5·1 answer
  • Need help I am not good at these​
    9·1 answer
  • Complete each congruence statement by naming the corresponding angle or side.
    12·1 answer
  • Consider the line y equals 2 over 5 x plus 4.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!