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
german
2 years ago
9

3) Calculate the area of the entire triangle below. Show your work * 22 31 8

Mathematics
1 answer:
dalvyx [7]2 years ago
4 0

Answer:

a = 1/2 (b) (h)

Step-by-step explanation:

Use Pythagorean theorem for sub triangle on the left: 8^2 + h^2 = 22^2

Use Pythagorean again for sub triangle on the right: x^2 + h^2= 31^2

Find your base: 8+x=b

Find entire area: a = 1/2 (b) (h)

You might be interested in
Please Help Me quick ​
____ [38]

Answer:

I think it is 4.5/6.5

Step-by-step explanation:

6 0
3 years ago
The diagram shows the distance between my home, H. and two towns, A and B.
olga nikolaevna [1]

I do not know English :33333

7 0
2 years ago
PLEASEEE EXPLAIN AND HELP
Firdavs [7]

The length of the unknown sides of the triangles are as follows:

CD = 10√2

AC = 10√2

BC =  10

AB = 10

<h3>Triangle ACD</h3>

ΔACD is a right angle triangle. Therefore, Pythagoras theorem can be used to find the sides of the triangle.

  • c² = a² + b²

where

c = hypotenuse side = AD = 20

a and b are the other 2 legs

lets use trigonometric ratio to find CD,

cos 45 = adjacent / hypotenuse

cos 45 = CD / 20

CD = 1 / √2 × 20

CD = 20 / √2 = 20√2 / 2 = 10√2

20² - (10√2)² = AC²

400 - 100(2)  = AC²

AC² = 200

AC = √200 = 10√2

<h3>Triangle ABC</h3>

ΔABC is a right angle triangle too. Therefore,

  • AB² + BC² = AC²

Using trigonometric ratio,

cos 45 = BC / 10√2

BC = 10√2 × cos 45

BC = 10√2 × 1 / √2

BC = 10√2 / √2 =  10

(10√2)² - 10² = AB²

200 - 100 = AB²

AB² = 100

AB = 10

learn more on triangles here: brainly.com/question/24304623?referrer=searchResults

5 0
2 years ago
A few more left <br> IMA GIVE EVERYTHING FOR THISS
ohaa [14]
<h2>Answer:</h2><h2>-4</h2><h2 /><h2>Hope this helps!!</h2>
3 0
3 years ago
Read 2 more answers
HELP ME PLS I NEED THIS NOW
Lyrx [107]

r = radius

Arc length = 2(3.14)r

7.9 cm = r

Plug our values in

Arc length = 2(3.14)(7.9 cm)

Arc length = 49.6 cm

4 0
3 years ago
Other questions:
  • The question is 2x minus 6 equals 0​
    9·2 answers
  • Which expression is equivalent to ?<br><br>​
    6·2 answers
  • O eliminate the y-terms and solve for x in the fewest steps, by which constants should the equations be multiplied? First Equati
    6·1 answer
  • Rick took a 45-minute lunch break. At the end of the break, it was 1:00 P.M. What time did Rick start his lunch break?
    12·1 answer
  • Solve (X + 6)(x - 4) = -16<br> O {-4, 6)<br> O {-4, 2]<br> O (-12, 22)
    9·1 answer
  • Which statement is true
    14·1 answer
  • On a trip of d miles to another city, a truck driver's average speed was x miles per hour. On the return trip, the average speed
    12·1 answer
  • Find the solution set of the following equations: <br><br>2y=2x+7<br><br>X=y+2
    14·1 answer
  • Katrina and her family received 147 pieces of chocolate packed in boxes of 21. Her family ate 3 boxes of chocolate. How many box
    14·2 answers
  • Diana paid for her food, plus half the cost of the pizza and half the tip. What was the total amount Diana paid?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!