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
evablogger [386]
2 years ago
12

Which do the following options represent the measure of arc RA

Mathematics
1 answer:
ANTONII [103]2 years ago
5 0

Answer:

77.2°

Step-by-step explanation:

Consider the triangle JKR.

∠KJR=108.6 (lies on the same line as ∠RJA, angles on a straight line add up to 180)

All the angles in a triangle add up to 180, so:

∠JKR+∠KJR+∠JRK=180

∠JKR+108.6+32.8=180

∠JKR=38.6=∠RKA

Consider ∠RKA. This angle stands on the same arc as ∠RCA.

Since the angle at centre is twice the angle at circumference, 2(∠RKA) = ∠RCA.

2(∠RKA) = ∠RCA

2(38.6)=∠RCA

∠RCA=77.2°

You might be interested in
What number increased by 7 equals two times the number?<br><br><br> 6<br> 7<br> 8<br> 9<br> 11
Julli [10]

Answer:

7

Step-by-step explanation:

7 plus 7 equals 14, which is two times 7

8 0
2 years ago
Read 2 more answers
10 x 25 2/5 equals what
kramer

Answer:

254 is your answer

7 0
3 years ago
Here is a central angle that measures 1.5 radians. Select all true statements. Question 1 options: A) The area of the whole circ
KATRIN_1 [288]

Answer:

  D, E

Step-by-step explanation:

The applicable formula is ...

  s = rθ

so, for θ = 1.5, the arc length is 1.5 times the radius. The true statements are ...

  D) The length of the arc defined by the angle is 1.5 times longer than the radius.

  E) The ratio of arc length to radius is 1.5.

8 0
2 years ago
10 1/8 +2 1/4<br> Show work please<br> and no links
omeli [17]

Step-by-step explanation:

Please refer to the attachment

4 0
2 years ago
What is the gcf of 56 and 14
IgorC [24]

Answer:

14

Step-by-step explanation:

14/14=1

56/14=4

4 0
3 years ago
Read 2 more answers
Other questions:
  • Initially, there were only 86 weeds in the garden. The weeds grew at a rate of 29% each week. The following function represents
    14·2 answers
  • What is m angle A B E?
    13·1 answer
  • The selling price of a dining table is $250.00, the markup is 40%. What is the cost of the table?
    11·1 answer
  • Christina is using her computer to design invitations to her birthday party. The text of the invitation is contained in a rectan
    10·2 answers
  • C.6<br> D.5<br> Geometry math question no Guessing
    11·1 answer
  • An appliance repairman charges $50 for service calls plus $25 per hour for labor. Write and solve an equation to determine how m
    15·1 answer
  • Marcus finds that (3x^2-2y^2+5x)+(4x^2+12y^2-7x)=7x^2-10y-2x. What error did Marcus make?
    14·2 answers
  • EQUATIONS AND INEC
    6·1 answer
  • I need help with this
    14·1 answer
  • Mr. Thompson's sixth grade class is competing in the school field day. There are 16 boys and 12 girls in his class. He divided t
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!