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
Rudik [331]
3 years ago
12

Select the correct answer. A triangle has vertices (-1, 2), (3, 1), and (7, 2). What is the approximate perimeter of th...

Mathematics
1 answer:
Eva8 [605]3 years ago
5 0

Answer:

16.24 Units

Step-by-step explanation:

The perimeter of the triangle is the sum of the length of the sides of the triangle. Given the points on the vertices, the length of each side may be found using the formula

Length = √(x2 - x1)^2 + (y2 - y1)^2

Considering the pair (-1, 2), (3, 1), the length of that side

= √(3 -- 1)^2 + (1-2)^2)

= √(16 + 1)

= √17 units

Considering the pair (-1, 2), (7, 2), the length of that side

= √(7 -- 1)^2 + (2-2)^2)

= √(64)

= 8

Considering the pair  (3, 1),  and (7, 2), the length of that side

= √(7 - 3)^2 + (2  - 1)^2

= √(16 + 1)

= √17

Hence the perimeter of the triangle

= √17 + 8 + √17

= 4.12 + 8 + 4.12

= 16.24 Units

You might be interested in
Write the equation of a line that is perpendicular to y = -8 3 x + 4 and goes through the point (5, 2)
zhuklara [117]

Answer:

y = 3/8x + 1/8

Step-by-step explanation:

The slope of a perpendicular line is the opposite and reciprocal of the original slope.

-8/3 -> 3/8

Find the new y-intercept.

y = 3/8x + b

2 = 3/8(5) + b

2 = 1.875 + b

0.125 = b

y = 3/8x + 1/8

Best of Luck!

5 0
3 years ago
What type of triangle has exactly two acute angles?
Rufina [12.5K]
The correct answer is right.

An acute one would have all three acute, while an obtuse one would have at least one obtuse angle.
5 0
3 years ago
Read 2 more answers
How much is 78ml when you turn it to litres<br>​
algol [13]

1000ML = 1 L

78ML ?

78*1/1000 = 0.078 L

5 0
2 years ago
Read 2 more answers
Help me with this problem
sveta [45]

Answer:

ñññññññññ

Step-by-step explanation:

11/9/2001

6 0
2 years ago
Which is an equation of the line that passes through the points (-6,-8) and (4,-4)
natita [175]

Answer:

y=\frac{2}{5}x-6.5

Step-by-step explanation:

\frac{(-8)-(-4)}{(-6)-4} \\ = \frac{-4}{-10} = \frac{2}{5\\}

y=mx+b

-8 = (\frac{2}{5}) (-6) +b

-8 = - \frac{12}{8} +b

b= -6.5

5 0
3 years ago
Other questions:
  • The type of angle that describes 5 and 2
    5·2 answers
  • Please help with problem and show steps
    8·1 answer
  • Negative 2X squared plus 3X +2 equals zero
    15·1 answer
  • Tutor me!
    8·1 answer
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! I CANNOT RETAKE THIS!!
    15·2 answers
  • 1. Write the linear equation for a line with a slope of 1/2 that goes through the point (-1,<br> 0).
    5·1 answer
  • What is the domain of this function
    8·2 answers
  • The Verrazano Narrows Bridge has a main span of 4,260 feet. The Akashi Kaikyo Bridge has a main span that is 53% longer. What is
    6·1 answer
  • What is the solution 6x-4 =2(3x-2)
    8·1 answer
  • You are planning your week-end schedule. You can spend at most 8 hours playing video games and doing homework. You want to spend
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!