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
Alexus [3.1K]
3 years ago
13

I’m confused on this one

Mathematics
2 answers:
never [62]3 years ago
6 0
I think its 90 degrees. 
shusha [124]3 years ago
4 0
I like incenter problems but this one looks underdetermined.  Is there enough information to get anywhere?  We're given what, an isoscleles triangle perhaps, with a  common side of AC=BC=37?

The incenter is the center of the inscribed circle, which will be tangent to all the sides, so each radius to the points where the circle touches the triangle will be perpendicular to the side.  The three radii are concurrent, their meet the incenter, the center of the incircle, oddly called G here.  

(For the record, standard notation is centroid G, orthocenter H, circumcenter O, incenter I, Nine Point Center N.)

r=EG=FG=DG is the altitude of three triangles that make up the whole triangle.  If we call a=BC, b=AC, c=AB we have equal areas:

\frac 1 2 ar + \frac 1 2 b r + \frac 1 2 c r = \textrm{area ABC}

\frac r 2 (a+b+c) = \textrm{area ABC}

r = \dfrac{ \textrm{area ABC}}{\frac 1 2 (a+b+c)}

We can plug in Heron's formula for the area; the denominator is already the semiperimeter.

But that doesn't really get us anywhere as we only know one side, perhaps two if we assume the triangle is isosceles but not the third.



You might be interested in
PLEASE HELP!!!!
sertanlavr [38]

Answer:

80 students

Step-by-step explanation:

52 + 28 = 80

6 0
3 years ago
Read 2 more answers
GIVING BRAINLEST, hi, I need an answer that is 100% correct because this test determines if I'm passing or not, thank you.
zubka84 [21]
Circumference of circle = π x d
diameter = 3x2= 6m
3.14 x 6 = 18.84m (circumference)

Area of a circle = π x r x r
=3.14 x 3 x 3
=28.26m2 (area)
3 0
3 years ago
Read 2 more answers
1. What is the solution of the system?
andreyandreev [35.5K]

Answer:

The given system of equations has solutions below:

1) The solution is (2,3)

2) The solution is (\frac{-8}{7}, \frac{5}{7})

3) The solution is infinitely many solutions

4) No solution

Step-by-step explanation:

Given system of equation are

-x+2y=4\hfill (1)

-4x+y=-5\hfill (2)

To solve equation by using elimination method

Multiply eqn (2) into 2

-8x+2y=-10\hfill (3)

Now subtracting (1) and (3)

-x+2y=4

-8x+2y=-10

_________________

7x=14

x=\frac{14}{7}

x=2

Substitute x=2 in equation (1)

-2+2y=4

2y=4+2

y=\frac{6}{2}

y=3

Therefore the solution is (2,3)

2) Given equation is

-2x+y=3\hfill (1)

4y-4=x

Rewritting as below

x-4y=-4\hfill (2)

To solve equation by using elimination method

multiply (2) into 2

2x-8y=-8\hfill (3)

Adding (1) and (3)

-2x+y=3

2x-8y=-8

________

-7y=-5

y=\frac{5}{7}

substitute y=\frac{5}{7} in (1)

-2x+\frac{5}{7}=3

-2x=3-\frac{5}{7}

-2x=\frac{21-5}{7}

x=-\frac{8}{7}

Therefore the solution is (\frac{-8}{7},\frac{5}{7})

3) Given equation is 6x+2y=10\hfill (1)

3x+y=5\hfill (2)

equation (1) can be written as

2(3x+y)=10

3x+y=\frac{10}{2}

3x+y=5

Therefore equations (1) and (2) are same therefore it has infinitely many solutions

4) Given equation is -x-2y=14\hfill (1)

-2x-4y=12\hfill (2)

multiply equation (1) into 2

-2x-4y=28\hfill (3)

To solve equation by using elimination method

subtracting (2) and (3)

-2x-4y=28

-2x-4y=12

_______

28\neq -12

therefore it has no solution

4 0
3 years ago
Which unit rate is higher 24 for 5 or 5 for 24
frez [133]

Answer:

24 for 5 is higher because you have to divide 24 by 5 and if you do that it gives you $4.8, while 5 for 24 gives you a unit rate of $0.20.

3 0
3 years ago
11. In circle H, if m3DHG = (11x - 36)* and m3GHF = (x + 12), find mDG.
Crazy boy [7]

Answer:

B. 187

Step-by-step explanation:

I think this is correct I took a test on this before

3 0
3 years ago
Read 2 more answers
Other questions:
  • Write 12.375 with number names
    6·1 answer
  • six scholars want to share 9 bags of popcorn.how much popcorn will each scholar get?.draw a model to prove your answer
    11·1 answer
  • To start a boardgame,the player who rolls two sixes gets to go first. What is the probability that a play will roll two number c
    13·1 answer
  • Which of these are qualdrilateral
    15·2 answers
  • What is the answer to , solve for W : 2E=6W
    7·1 answer
  • PLS HELP ASAP I BEG YOU
    6·2 answers
  • Which of the following fractions converts to
    5·1 answer
  • Aleesia has a box of 52 muffins. She wants to put out plates that each have the same number of muffins. What is one possible way
    12·1 answer
  • What is 357 times 1045?
    12·2 answers
  • Please help………………………..
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!