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
igor_vitrenko [27]
3 years ago
15

3. In the diagram O is the centre of

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
5 0

Answer:

Step-by-step explanation:

a) angle CAD= angle ODA ( in triangle OAD, OA=OD(same radius) angels opp                          to equal sides are equal)

hence angle CAD=42

b)angle b =90(angle subtended by diameter)

hence using angle sum property in triABC,

angle ACB=66-------------eq4

c) in tri OAD,

Angle AOD=180-(42+42)-------(using angle sum prop.)

=> 96-----------------eq1

angleACD=1/2 Angle AOD ( angle subtende by an arc at centre is double the angle subtended...)

hence angle ACD =1/2 x 96(from eq1)

angleACD=48--------------eq3

from eq 3,and eq4,

angle BCD= 48+66

=114 degree...

hope this helped you........pls mark brainliest

You might be interested in
Which is the best unit to use for measuring the length of an eyelash millimeters C centimeters B meters or D kilometers
myrzilka [38]
I believe it is centimeters 
5 0
3 years ago
Multiple Choice
WINSTONCH [101]

9514 1404 393

Answer:

  B.  P = 70 in; A = 300 in²

Step-by-step explanation:

The perimeter is the sum of the side lengths. Opposite sides are the same length, so the perimeter is ...

  P = 20 in + 15 in + 20 in + 15 in = 2(20 in +15 in) = 2(35 in)

  P = 70 in.

Only answer choice B has the correct value. (Its area figure is also correct.)

7 0
2 years ago
Tristan had 95 inches of ribbon. He cut off 27.50 inches. How many inches of ribbon remain?
n200080 [17]

Answer:

95-27.50= 67.50 inches of ribbon


4 0
2 years ago
Hellllllllllllllllllllllp
Kitty [74]

Answer:

1200

Step-by-step explanation:

7 0
3 years ago
What is the average of 36,300
Kamila [148]

Step-by-step explanation:

I'm struggling with that to sowy T T

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is 75% of 140?<br><br><br><br><br> 65<br><br><br> 75<br><br><br> 95<br><br><br> 105
    11·2 answers
  • 35
    5·1 answer
  • Select the correct answer.
    13·1 answer
  • Which equation has no solution?
    6·1 answer
  • Values of x and y that make a linear equation true
    9·1 answer
  • Please help brainiest
    11·1 answer
  • Write an equation for the line, given that M=3 and the Y intercept is (0,2)
    6·2 answers
  • One rainy Saturday morning, Adam woke up to hear his mom complaining about the house being dirty. "Mom is always grouchy when it
    10·1 answer
  • Which is more -1.5 or -3/2
    5·1 answer
  • Please teach me how to solve part b, thank you.​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!