tatsuya999
tatsuya999 tatsuya999
  • 04-06-2021
  • Mathematics
contestada

Please help me if you can!

Please help me if you can class=

Respuesta :

mathmate
mathmate mathmate
  • 04-06-2021

Answer:

arc ACD = 120°

Step-by-step explanation:

Angle ACD = 120°

From cyclic quadrilaterals, opposite angles are supplementary.

angle ABD + angle ACD = 180

120 + ACD = 180

ACD = 60

Let the centre be point O.

Then arc ACD is the same as the angle AOD

From chord properties,

angle ABD = angle AOD /2

or

AOD = 2 * ABD = 2*60 = 120°

Answer Link

Otras preguntas

Please, look at the photo and give the ansver.
What will be the next digit in the sentence 1, 1, 2, 3, 5, 8, 13, 21, 34?Please show me your way of thinking :)
What do all members of a biological species have in common? A. They can interbreed and produce fertile offspring. B. They are members of the same population.
What are two movies which titles relate to 4th of July?
what is database of computer ?
Believing that all football players are academically challenged, that all African Americans are great athletes, and that all women can cook well are examples o
Name the singer/songwriter of “On the 4th of July.”
Two ratios (fractions) that are equal to each other.
Rule for the relationship between certain quantities. Domain Origin Formula Term
Two men who signed the Declaration of Independence went on to become U.S. presidents. Who were they?