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
erma4kov [3.2K]
2 years ago
15

The side lengths of a triangle are 5, 8, and 12. Is this a right triangle?

Mathematics
2 answers:
katovenus [111]2 years ago
6 0

Answer:

no

Step-by-step explanation:

lyudmila [28]2 years ago
4 0

Answer: No, it is not a right triangle.

===================================================

Let

  • a = 5
  • b = 8
  • c = 12

Let's see if a^2 + b^2 = c^2 is a true equation. If so, then we have a right triangle.

a^2 = 5^2 = 25

b^2 = 8^2 = 64

a^2+b^2 = 25+64 = 89

c^2 = 12^2 = 144

We see that a^2+b^2 = 89, but c^2 = 144. So a^2+b^2 = c^2 is a false equation when (a,b,c) = (5,8,12). Therefore, this is not a right triangle.

Side note: Because c^2 is larger than a^2+b^2 in this case, this means we have an obtuse triangle.

You might be interested in
Due Today, Please help me.
Vsevolod [243]

Answer:

Yes, SAS.

Step-by-step explanation:

For my education system, there isn't such thing as SAS, ASA or etc. I just had to search it up what it was.

Congruent angles are angles with the same shape and size. The two triangles are congruent if you look carefully, after that I searched up and saw the different rules of triangles. I think that SAS might be the correct answer.

6 0
3 years ago
In the figure below, angle X is 35 degrees. What is the measure of angle Z?
ira [324]

Answer:

Z = 45 degrees

Step-by-step explanation:

the angle is still an acute angle but it is not a right angle so it must be 45 according to my calculations. plz mark brainliest

3 0
3 years ago
A used car has a value of $15,250 when it is purchased in 2012. The value of the car decreases at a rate of 7.5% per year. Write
horrorfan [7]
7.5% is 3/40. The equation is y=15250(1-3/40)ˣ=15250(37/40)ˣ.
When x=8 this becomes $8173.42.
3 0
3 years ago
PLEASE HELP PLS!!!!!
Alisiya [41]
Subtitute f(x) with 2x + 1, and subtitute g(x) = -x + 4
f(x) = g(x)
2x + 1 = -x + 4

Then solve the equation above to find the value of x
Move the coefficient-variable x to the left side, and move the constants to the right side. When they are moved, addition becomes substraction, substraction becomes addition
2x + 1 = -x + 4
2x + x = 4 - 1

Simplify the equation
2x + x = 4 - 1
3x = 3

Move 3 on the left side to the right side, it becomes denominator
3x = 3
  x = 3/3
  x = 1

The solution to the equation is
x = 1
5 0
3 years ago
Read 2 more answers
Jill will go to the swimming pool on 20 different days this month.
yulyashka [42]

Answer:

15

Step-by-step explanation:

2.25 times 20=45

45-30=15

4 0
3 years ago
Other questions:
  • What is the product of x(5x + x^2)
    9·1 answer
  • Todd wants to make a snack of a number of grapes and slices of cheese. He knows that each grape has 2 calories. The slice of che
    12·1 answer
  • How do you round 8.656 to the nearest tenth
    13·2 answers
  • Find the area of the smaller sector.<br> Round to the nearest tenth.<br> Help needed fast
    15·1 answer
  • Is 3x + 2y = 5 direct variation
    14·1 answer
  • Nala is getting new tile in her kitchen. Her kitchen is in the shape of a rectangle with a length of 9 feet and a width of 15 fe
    12·1 answer
  • HELP ME POR FAVOR pleaseeee
    9·2 answers
  • A gardening box is 412 yd by 212 yd by 34 yd. What is the maximum amount of planting soil that can be used to fill the gardening
    5·2 answers
  • A certain type of brass contains 65% copper. How many pounds of copper are contained in 120 pounds of brass?
    13·1 answer
  • Refer to the previous question.Approximately how much money would be in your account after the third year?(Assume that you do no
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!