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
adelina 88 [10]
3 years ago
13

If the blue radius below is perpendicular to the green chord and the segment BC is 7.6 units long, what is the length of the cho

rd?
A. 15.2 units

B. 3.8 units

C. 30.4 units

D. 7.6 units

Mathematics
1 answer:
galina1969 [7]3 years ago
6 0

Answer:

The correct answer is A. 15.2 units

Step-by-step explanation:

The segment AB is congruent to the segment BC  eg AB≅BC Why?

We can prove it with the triangle congruent theorem, postulate side-side-angle

We are watching triangle ΔABO and triangle ΔCBO, they are congruent

first element side OB=OB - common side

second element side OA=OC=r - radius of the circle

third element angle ∡ABO≅∡CBO=90°

According to the postulate side-side-angle we can conclude that triangles

ΔABO≅ΔCBO (triangles are congruent)

If they are congruent all of their elements are also congruent and therefore also

side AB=BC  => AB+BC=AC,  which is chord  => 7.6+7.6=15.2 units

AC= 15.2 units ( chord )

Good luck!!!


You might be interested in
The area of a circle is 2464cm2.calculate it's diameter to 2 significant figures<br>​
tigry1 [53]

Answer:

hi

Step-by-step explanation:

Answer:

The diameter of the circle is 56 cm.          

Step-by-step explanation:

Given : The area of the circle is 2464 cm square.

To find : The diameter of the circle?

Solution :

The area of the circle is defined as

Where, A=2464 cm² is the area,

r is the radius

Substituting the values,

Radius of the circle is 28 cm.

The diameter of the circle is  

Therefore, The diameter of the circle is 56 cm.

3 0
2 years ago
What is the range of the following list of numbers:
galina1969 [7]

Answer:

it would have a range of 6

Step-by-step explanation:

im guessing that u ment 4 and ten not 104 so ya

3 0
3 years ago
If your the bus driver and you have 30 kids on the bus. But the first stop 10 kids get off the bus how old is the bus driver?
ozzi

Answer:

P.ut your age since you're the bus driver

Step-by-step explanation:

Hope this helps!

3 0
2 years ago
Aaron earned $74 at his job when he worked for 4 hours. What was his hourly pay rate in dollars per hour? Express your answer in
Vinil7 [7]

Answer:

$18.50

Step-by-step explanation:

You notice he gets $74 in 4 hours in which when you need to simplify it:

74/4

when you do this you should get

18.5

So Aaron's hourly pay rate is $18.50

7 0
3 years ago
A triangular sail has two sides the same length. The third side is 9ft shorter than either of the equal sides. The perimeter of
jeka94
a-length\ one\ of\ the\ same\ sides\\\\a-9-length\ of\ third\ side\\\\a+a+a-9=63\ \ \ \ \ \ |add\ 9\\a+a+a=63+9\\3a=72\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |divide\ by\ 3\\a=24\\\\a-9=24-9=15\\\\The\ shortest\ side\ is\ 15.
4 0
2 years ago
Other questions:
  • Destiny designs necklaces.
    14·1 answer
  • If Diana and Steven been dating since January 28 and broke up on the 20th of February how long have they dated
    11·1 answer
  • PLEASE HELP ASAP FOR LOTS OF POINTS AND BRAINLIEST
    15·2 answers
  • You intended to ride all of the rides exactly one time each at the waterpark. Which would be least expensive: pay separately or
    12·2 answers
  • Solve for y in 7y - 3/4 = -1/4y - 1/3
    9·1 answer
  • The points (8,2) and (9,10) fall on a particular line. What is its equation in point-slope form?
    5·1 answer
  • Circle T is shown. Angle Q S R intercepts arc Q R. Angle Q S R is 52 degrees. What is the measure of arc Q R? 26° 52° 104° 128°
    12·2 answers
  • If anyone can answer I will give brainleiest ​
    14·2 answers
  • The perimeter of a certain pentagon is 12.5 inches. Four sides of this pentagon have the same length, in inches, m, and the othe
    10·1 answer
  • Add $50 million and 179.7 billion,
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!