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
Lady bird [3.3K]
2 years ago
5

Find the area of the triangle below.

Mathematics
1 answer:
gulaghasi [49]2 years ago
8 0

Answer:

Gọi AH là đường cao kẻ từ A đến BC

Xét tam giác AHC vuông tại H

Suy ra AH = HC. cotA= 9.cot35° = 12,9

Xét tam giác AHB vuông tại H

Suy ra BH = AH.tanA = 12,9.tan61°=23,37

Ta có BC= HC+ HB= 9+23,27 =32,27

Diện tích tam giác ABC = 1/2 × AH ×BC= 1/2 ×12,9×32,27=208,1415

You might be interested in
9) Find the slope of the line. *
jarptica [38.1K]

Answer:

should be 3

Step-by-step explanation:

4 0
3 years ago
Felicity is planting a garden. Should she measure the perimeter or area to find how much dirt she needs to cover the garden?
Alex_Xolod [135]
She wants to fill the garden with dirt so she should measure the area. If she were building a fence outside the garden then she'd measure the perimeter. 
4 0
3 years ago
Simply 3 26/27 + 2 3/4 + 15 1/9
cupoosta [38]
1) 3+2+15=20
2) 3/4= 27/36  1/9=4/36
3) 27/36+4/36=31/36
4) 26/27=936/972   31/36= 637/972
5) 936/972 + 637/972= 1573/972=  1 601/972
7 0
3 years ago
Read 2 more answers
The teenagers of a school sold 430 tickets for their Christmas program. The girls sold 15% more tickets than the boys sold. How
Paul [167]
The girls sold 230
The boys sold 200
8 0
3 years ago
What is the percent of change from 500,000 to 400,000?
antoniya [11.8K]

Answer:

20%

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Kai left her mansion and walked 7 miles south. Then, she turned and walked 5 miles to the east. How far is Kai from home?
    11·1 answer
  • Which of the following is a monomial?<br> 12c<br> c2 − 16<br> c2 + c + 6<br> c3 + 4c2 − 12c + 7
    11·2 answers
  • By increasing speed of car by 10km/hr the time for journey of distance 72km/hr is reduced by 36mins.find original speed of car
    10·1 answer
  • Complete the table of values for y=x^2-2
    10·1 answer
  • 5) A rectangular prism has a width of 2 cm, a height of 5 cm and a depth of 3 cm. What is the volume of the prism
    6·1 answer
  • Which of the following is not a quadratic function
    6·1 answer
  • Please help i will mark brainliest!!!!<br> i need A B and C
    11·1 answer
  • The area of a rectangle is 221 in?. If its width is 13 in, then find its length.
    14·1 answer
  • The x coordinates of the point where 2y-x=10 intersect the line y=3x​
    7·1 answer
  • What is this? please help​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!