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
Elena-2011 [213]
3 years ago
12

What is the area of the triangle? 9 4 12

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
7 0

Answer:

  13.636

Step-by-step explanation:

The area can be found using Heron's formula:

  A = √(s(s-a)(s-b)(s-c))

where s=(a+b+c)/2.

For the given triangle, ...

  a=9, b=4, c=12, s=(9+4+12)/2 = 12.5

  A = √(12.5(3.5)(8.5)(0.5)) = √185.9375 ≈ 13.636

The area of the triangle is about 13.636 square units.

You might be interested in
PLEASE HELP ASAP
Svetradugi [14.3K]

Answer:

(y+2)=2(x−3)

Or

(y−4)=2(x-6)

Or

y=2x−8

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
What is the slope?
Pavlova-9 [17]

Answer:5/3

Step-by-step explanation:

choose two coordinates (40,0) and (70,50) then use y2-y1/x2-x1. when you plug the numbers in 50-0/70-40, subtract 50/30, and simplify, you get 5/3

6 0
3 years ago
Perform the indicated operation. -6 + (-5) + 7
olga2289 [7]

the answer to this problem is -4

5 0
3 years ago
Read 2 more answers
In a sequence described by a function, what does the notation f(3)=1 mean
vladimir2022 [97]
X = 3
Y = 1

f(3)=1
X Y
5 0
3 years ago
Read 2 more answers
Work out the bearing of D from C.<br> (Hint: bearings are written with three digits.)
White raven [17]

Answer:

050°

Step-by-step explanation:

The bearing of D from C is the angle between the north pole and the line joining C and D when moving in a clockwise direction.

From the diagram, the angle is 050°

4 0
1 year ago
Other questions:
  • Kaylee decided to donate 30% of her savings if she has $238 in her savings account about how much will she Donate
    7·1 answer
  • Several students tested plant growth for given conditions. Which student’s data is most representative of average plant growth f
    15·2 answers
  • UESTION 2 120 MARKS Underground cable breakdown often occur due to the unpredictable deterioration rate of the cable insulation.
    6·1 answer
  • The equation Y-3=-2(x+5) is written in point-slope form. What is the y-intercept of the line?
    11·2 answers
  • PLEASE DIE TODAY I NEED MY GRADE UP it is not 12.5 this is my last attempt I think 15 points
    6·1 answer
  • Order the numbers from least to greatest:<br> 0.8, 8%, 18%, 1/8, 8/18
    11·1 answer
  • Solve the system. Y = 1/2x - 3 Y= 4 + 1/2x
    7·2 answers
  • WILL GIVE BRAINLYIST DUE IN 2 HOURS
    15·1 answer
  • What angles are Adjacent to angle 4 below?​
    12·2 answers
  • What is the area of rhombus ABCD?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!