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
Naddika [18.5K]
3 years ago
5

Given: AB tangent at D, AD = OD = 4 Find: Area of the shaded region

Mathematics
1 answer:
MrMuchimi3 years ago
4 0

Answer:

1.72

Step-by-step explanation:

AB tangent at D, AD = OD = 4

so triangle OAD is right angle with side of 4 and 4.

area of OAD = 1/2 * 4 * 4 = 8

Angle AOD = DAO = 45 deg.

so circular sector OCD area = area of circle O * 45/360

= pi * 4 * 4 * 45/360

= 2pi

Shade area ACD = trigangle OAD - circular sector OCD

= 8 - 2pi

= 1.72

You might be interested in
What does the monster say when introduced
mixas84 [53]
I'm guessing "Franken Berry Fanatic Starry" like the cereal. That's what my research tells me.

4 0
4 years ago
The altitude of an equilateral triangle is 5 cm. what is the length of a side of the triangle?
Grace [21]

Answer:

The length side of the triangle is \frac{10\sqrt{3}}{3}\ cm

Step-by-step explanation:

we know that

The equilateral triangle has three equal sides and three equal internal angles of measure of 60 degrees each.

Let

b------> the length side of the equilateral triangle

Applying Pythagoras theorem

b^{2}=(b/2)^{2}+5^{2}\\\\ b^{2}-(b/2)^{2}=25\\\\ (3/4)b^{2}=25\\ \\b^{2} =25*4/3\\ \\b=\frac{10}{\sqrt{3}}\ cm\\ \\b=\frac{10\sqrt{3}}{3}\ cm

3 0
3 years ago
Hãy nêu định lý pytago
Natasha_Volkova [10]

The text of the Pythagorean Theorem The Pythagorean Theorem states: “The sum of the squares of the lengths of the two sides of the right triangle, which are the shortest sides in a right-angled triangle, is equal to the square of the length of the hypotenuse, which is the longest side of the triangle.”

And in symbols: Pythagorean theorem = ( A² + B² = C²)

where ;

● A, B: the two sides of a right triangle ABC.

● C: The hypotenuse of a right triangle is ABC, which is the longest side.

It should be noted that the inverse of the theory is also true; Since the triangle to which the Pythagorean theorem applies, namely: A² + B² = C², is necessarily a right-angled triangle.

<h3><u>In Vietnamese ( Bằng tiếng việt) ;</u></h3>

Nội dung của Định lý Pitago Định lý Pitago phát biểu: “Tổng bình phương độ dài hai cạnh của tam giác vuông, là cạnh ngắn nhất của tam giác vuông, bằng bình phương độ dài của cạnh huyền, là cạnh dài nhất của tam giác. "

Và trong các ký hiệu: Định lý Pitago = (A² + B² = C²)

ở đâu ;

● A, B: hai cạnh của tam giác vuông ABC.

● C: Cạnh huyền của tam giác vuông ABC là cạnh dài nhất.

Cần lưu ý rằng điều ngược lại của lý thuyết cũng đúng; Vì tam giác áp dụng định lý Pitago, cụ thể là: A² + B² = C², nhất thiết phải là tam giác vuông.

I hope I helped you^_^

6 0
3 years ago
Can someone help me pls
marta [7]

Answer:

237?

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
from 2002 to 2012, the number of a particular make of cars sold at a dealership yearly declined to 500. The number is expected t
Alinara [238K]
To determine the number of cars that will be sold by the year 2020, we will use the equation,

     N = (N1)(1 - r)^(t)

where N1 is the starting number of cars, r is the rate of the decrease, and t is the number of years from 2012. Substituting the konwn values,

   N = (500)(1 - 0.028)^(8)
    N = 398.38

The closest integer to the calculated value is 398. Thus, the answer is 398 cars. 
3 0
3 years ago
Other questions:
  • A local market sold 6 containers of jumbo shrimp on Saturday. The following list shows the number of shrimp that were packaged i
    6·1 answer
  • In the circle m∠ACD=2x+14 and m∠ABD=3x+8<br> what is the value of x
    5·1 answer
  • Round up to the greater hundred thousand of 949,500
    10·1 answer
  • Five years ago, Alan was thrice as old as Aron. After ten years, Alan will be twice as old as Aron. How old are Alan and Aron?
    12·1 answer
  • Which of the following is a root of P(x)=-2x^3+x^2+4x+4?<br> -1<br> 0<br> 1<br> 2
    9·1 answer
  • ABC is reflected about the line y= -x to give abc with vertices a (-1,1) b (-2,1) c (-1,0) what are the vertices of abc
    11·1 answer
  • Https://brainly.com/question/19678080<br> Whats wrong with these bots-
    15·2 answers
  • A straight line has a gradient of -2.Find the equation of that line if it passes through a point whose coordinates is (6,2).​
    14·1 answer
  • Why dose math have to be so hard
    7·2 answers
  • I need help with D, i’m confused on it.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!