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
Svet_ta [14]
2 years ago
11

Given: Two concentric circles with AB tangent to smaller circle at R Prove: AR=RB

Mathematics
2 answers:
disa [49]2 years ago
5 0

Answer:

See explanation

Step-by-step explanation:

If segment AB is tangent to the smaller circle, than AB⊥OR. Consider two right triangles AOR and BOR. In these triangles:

  • OR is common leg;
  • AO=OB as radii of larger circle;
  • ∠ARO=∠BRO, because AB⊥OR.

By HL theorem, ttriangles AOR and BOR are congruent. This gives you that AR=RB.

Alexeev081 [22]2 years ago
5 0

Answer:

R is the mid point of AB so  AR = RB

Step-by-step explanation:

Points to remember

The diameter of a circle and a chord is mutually  perpendicular then the diameter divide the chord in two equal parts.

<u>To prove AR = RB</u>

From the figure we get, AB is the tangent at R of small circle.

Therefore OR ⊥ AB

O is the center of both circles.

AB is the chord of large circle.

So The diameter of large circle passing through R is perpendicular  to AB

Therefore AR = RB

You might be interested in
Match the reasons to the statements in the proof. Given: m 1 + m 5 = 180° m 1 + m 4 = 180° Prove: | |
Elden [556K]

Answer and Step-by-step explanation:

Since we have given that

1. m∠1 + m∠5 = 180° and m∠1 + m∠4=180° - Given

2. m∠1 + m∠5 = m∠1 + m∠4 - Substitution

3. m∠5 = m∠4 -

Subtraction property of equality

4. Ray YZ is parallel to Ray UV - If alternate interior angles equal, then line are ||

3 0
3 years ago
Skylar made 25% of her free throws over the season. If she shot 200 free throws, how many did she make?
Reika [66]

Answer:

50 Free Throws

Step-by-step explanation:

Answer: 50 Free Throws

25% = 0.25

0.25*200=50

<em>skylar sucks at basketball</em>

5 0
2 years ago
What is the shape of the cross section taken parallel to the base of a cylinder? circle rectangle triangle ellipse
Naya [18.7K]

The option A is correct. A circle is the shape of the cross section taken parallel to the base of a cylinder.

According to the statement

We have given that the cylinder and we have to tell that the which shape required for the cross section taken parallel to the base of a cylinder.

So, For this purpose,

We know that the

A cylinder is a three-dimensional solid, one of the most basic geometric shapes.

In this shape the surface formed by the points at a fixed distance from a  line segment, which is  known as the axis of the cylinder.

As the bases of cylinder are two identical circles which are parallel to the curved surface.

The curved surface when we open will be circle rather than the circle.

So, Due to this reason the answer is a circle.

Therefore, a circle is the shape of the cross section taken parallel to the base of a cylinder.

Learn more about base of cylinder here

brainly.com/question/76387

#SPJ1

5 0
2 years ago
<img src="https://tex.z-dn.net/?f=%20%20%5Crm%20%20%5Clim_%7Bk%20%5Cto%20%5Cinfty%20%7D%20%5Csqrt%5B%20%20k%5D%7B%20%5CGamma%20%
Naddik [55]

We have

\sqrt[k]{\Gamma\left(\dfrac1k\right) \Gamma\left(\dfrac2k\right) \cdots \Gamma\left(\dfrac kk\right)} \\\\ = \exp\left(\dfrac{\ln\left(\Gamma\left(\dfrac1k\right) \Gamma\left(\dfrac2k\right) \cdots \Gamma\left(\dfrac kk\right)\right)}k\right) \\\\ = \exp\left(\dfrac{\ln\left(\Gamma\left(\dfrac1k\right)\right)+\ln\left( \Gamma\left(\dfrac2k\right)\right)+ \cdots +\ln\left(\Gamma\left(\dfrac kk\right)\right)}k\right)

and as k goes to ∞, the exponent converges to a definite integral. So the limit is

\displaystyle \lim_{k\to\infty} \sqrt[k]{\Gamma\left(\dfrac1k\right) \Gamma\left(\dfrac2k\right) \cdots \Gamma\left(\dfrac kk\right)} \\\\ = \exp\left(\lim_{k\to\infty} \frac1k \sum_{i=1}^k \ln\left(\Gamma\left(\frac ik\right)\right)\right) \\\\ = \exp\left(\int_0^1 \ln\left(\Gamma(x)\right)\, dx\right) \\\\ = \exp\left(\dfrac{\ln(2\pi)}2}\right) = \boxed{\sqrt{2\pi}}

6 0
2 years ago
Which of the following is the equation of a line parallel to the line y=-x+1,
atroni [7]

Answer:

B

Step-by-step explanation:

The result says y=-x+5 which can be rearrange d to x+y=5

7 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the system by the method of elimination.
    12·2 answers
  • Indicate whether each of the following equations is sure to have a solution set of all real numbers. Explain your
    13·1 answer
  • Determine the vertex- f( x)= x^2 +4x +3<br><br> (2,-1)<br> (-2, -1)<br> (-3, -1)<br> (-1, -2)
    14·1 answer
  • Domain of g(x)=1-2x^
    12·1 answer
  • Is the relationship for Camille’s puppies weight in terms of linear or nonlinear
    11·2 answers
  • Consider the following polynomial expression
    14·1 answer
  • Which of the following methods can be used to determine if a relation is a function?? Select all that apply.
    9·1 answer
  • Help plz i will give brainliest!!
    11·1 answer
  • Help w y math shawtys
    15·1 answer
  • John scored 6 points in the first 8 minutes of the basketball game. At this same rate, how many points
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!