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
Allisa [31]
2 years ago
13

Find the measures of each angle in the inscribed quadrilateral.

Mathematics
1 answer:
Marat540 [252]2 years ago
8 0

Answer:

m∠P = 55° , m∠R = 125° , m∠Q = 110° , m∠S = 70°

Step-by-step explanation:

* Lets study the figure

- A circle and inscribed quadrilateral PQRS

- The four vertices of the quadrilateral lie on the circumference

 of the circle

∴ PQRS is a cyclic quadrilateral

* Lets revise the properties of the cyclic quadrilateral

- Each two opposite angles are supplementary, that means

 the sum of each two opposite angles = 180°

- The measure of the exterior angle = the measure of the

  opposite interior angle

* Lets solve the problem

∵ PQRS is a cyclic quadrilateral

∴ m∠P + m∠R = 180° ⇒ opposite angles

∵ m∠P = 5y + 30

∵ m∠R = 15y + 50

∴ 5y + 30 + 15y + 50 = 180 ⇒ add the like terms

∴ 20y + 80 = 180 ⇒ subtract 80 from both sides

∴ 20y = 100 ⇒ divide both sides by 20

∴ y = 5

* Now lets substitute the value of y in each angle to find

 their measures

∵ m∠P = 5y + 30

∴ m∠P = 5(5) + 30 = 25 + 30 = 55°

∵ m∠R = 15y + 50

∴ m∠R = 15(5) + 50 = 75 + 50 = 125°

∵ m∠Q = y² + 85

∴ m∠Q = 5² + 85 = 25 + 85 = 110°

∵ ∠S is opposite to ∠Q

∴ m∠S + m∠Q = 180° ⇒ opposite angles in the cyclic quadrilateral

∴ m∠S + 110 = 180 ⇒ subtract 110 from the both sides

∴ m∠S = 70°

* The measures of the angles are

  m∠P = 55° , m∠R = 125° , m∠Q = 110° , m∠S = 70°

You might be interested in
Gasoline costs 2.21 euro per liter in France. What is the price in dollars per gallon
Daniel [21]

1G is equivalent to 3.7854L

Now you multiply that by the cost per L in Euros:

2.21(3.7854) = 8.365734

Now convert it to USD:

8.365734(2.21) = 18.48 USD per gallon

please mark brainlist

FIXED

4 0
3 years ago
46) write the expression: The quotient of p and q is twelve less than three times the sum of P and q
katovenus [111]

Answer:

Step-by-step explanation:

p/q = 3(p + q) - 12

The quotient of p and q: p/q quotient means division

is means =

3(p + q) is three times the sum of p and q

3(p + q) - 12 twelve less than three times the sum of p + q

6 0
2 years ago
You have $3.25 to buy bananas. Each bananas costs $0.35. How many bananas will you buy? Will you use all your money? If not, how
Margarita [4]

Answer:

If had left over I would leave $1.85

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
In the system of equations below, which variable would it be easiest to solve for?
Maru [420]

Answer:

<h3>     The first: The easiest to solve for is x in the first equation.</h3>

Step-by-step explanation:

To get x from first equation  you just need to subtract 4y from both sides.

The rest of variables needs two operations to get variable - subtracting and then dividing.

7 0
2 years ago
Read 2 more answers
Pls help with these questions, will give BRAINLIEST (if you know the answer)
Anika [276]

I don't know but these can be really difficult

good luck

8 0
2 years ago
Other questions:
  • One way to measure whether the trees in the Wade Tract are uniformly distributed is to examine the average location in the north
    6·1 answer
  • Help with Area of Irregular Shapes PLEASE<br> !!!!!!!!!!
    11·1 answer
  • When you do this seemingly simple problem, what is the answer you get?
    14·2 answers
  • Please help<br><br> 5 points up for grabs
    9·2 answers
  • Rounding or compatible numbers to estimate the difference. 762-332
    13·1 answer
  • Sara earns $12.50 an hour cleaning houses if she works form 8:00am to 7:00pm how much money will she make​
    10·2 answers
  • Two joggers run 8 miles north and then 5 miles west what they is the shortest distance to the nearest tenths of a mile they must
    11·1 answer
  • If ON = OL find mOML
    15·2 answers
  • A diver standing on a boat, 5 ft above sea level, looks straight down and sees coral that is 18 ft below sea level. Let distance
    15·1 answer
  • 10x100000ihavecrownbranlycrown
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!