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
Alik [6]
3 years ago
9

How to find the measure of a triangle?

Mathematics
2 answers:
gulaghasi [49]3 years ago
8 0
Is it 1/2×b×h
to find the area
or
base×height
AleksAgata [21]3 years ago
6 0

Hi there! :)

<u>Answer:</u>

The answer is <u>D. 83°</u>


Step-by-step explanation:

You should know that the interior angles of a triangle always add up to 180°.

So, what you will need to do, is add all 3 angles together and create an equation (equal to 180). Then you need to solve this equation by isolating "x":

(8x + 12) + (55 - 3x) + (10x + 23) = 180

Get rid of all the parentheses

8x + 12 + 55 - 3x + 10x + 23 = 180

Add all similar terms together

8x - 3x + 10x = <u>15x</u>

12 + 55 + 23 = <u>90</u>

15x <u>+ 90</u> = 180

Subtract "90" from each side of the equation → 180 - 90 = 90

<u>15</u>x = 90

Divide each side of the equation by "15" → 90 ÷ 15 = 6

<u>x = 6</u>


Since you now know that the value of "x" is 6, you can now find the measure of the angle at George's position by replacing the "x" by 6:

10x + 23 = Measure of the angle at George's position

<u>10(6)</u> + 23

Multiply 10 by 6 → 10 × 6 = 60

<u>60 + 23</u>

Add 60 and 23 together → 60 + 23 = 83

<u>83</u> = Measure of the angle at George's position


There you go! I really hope this helped, if there's anything just let me know! :)

You might be interested in
Find two consecutive integers whose sum is 93. (Show work)
kenny6666 [7]

You are looking for three consecutive integers whose sum is 93. First, divide 93 by 3 and get 31. Go one above 31 and one below. You get 30, 31 and 32 which sum to 93.

5 0
3 years ago
What is the sum of 6 feet 10 inches and 8 feet 9 inches
sertanlavr [38]
 The answer is 15 foot 7 inches or 187 inches.
3 0
3 years ago
Read 2 more answers
Draw an angle of negative pie over three in<br> Standard position.
AVprozaik [17]

Check the picture below.

recall that negative angles go "clockwise".

7 0
3 years ago
A swimming pool holds 250,000 gallons of water and is being drained at 200 gallons per minute. How many gallons remain in the po
seropon [69]

Answer:

After 5 minutes, the pool will hold 249,00 gallons of water.

After 20 minutes, the pool will hold 246,000 gallons of water.

6 0
2 years ago
Read 2 more answers
Does anyone know this and if it is extraneous or not?
Anna11 [10]
Addd 4 to both sides
\sqrt{x+9}=5
sqare both sides
x+9=25
minus 9 both sides
x=16

plug it in for x and see
\sqrt{16+9}-4=1
\sqrt{25}-4=1
5-4=1
1=1
true

not extraneous
an extraneous root would be x=-34
5 0
3 years ago
Other questions:
  • You put $280 in a one-year CD that will earn 4.5% a year, calculated semiannually. How much simple interest will you earn?
    15·1 answer
  • Model 55% during a 10-by-10 grid
    14·1 answer
  • Find the total weekly earnings for a waitress with a weekly salary of $275 plus a 3% commission on dinners, if the total worth o
    8·1 answer
  • 3x^2(y+5)+7(y+5) in complete factor form
    13·1 answer
  • What is the inverse of the function f(x)=2x-10
    7·2 answers
  • two interior angles of a pentagon measures 112 degrees and 68 degrees and the remaining angles are of the same measures. Find th
    15·2 answers
  • Need Help Please!!<br>Enter an inequality that represents the graph in the box. 
    8·2 answers
  • Using a type of logic known as __________, a generalized conclusion can often be drawn from a large number of specific observati
    10·1 answer
  • Which graph shows the solution set for 2x+3 &gt;-g?
    11·1 answer
  • Find the blanks
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!