In the given triangle , Coordinates of A (-1,3) , B (-5,-1), C (3,-1).
Let's find the slope of AB and AC .
Formula of slope is

For AB, slope is,

And slope of AC is

Product of the slopes of AB and AC is

Since the product of the two slopes is -1, so AB and AC are perpendicular.
And if they are perpendicular, angle BAC is 90 degree, so the triangle is right triangle .
Now we check the length of the sides of the triangle, and for that we use distance formula , which is

So for AB,

For AC,

For BC,

And since two sides are equal, so the triangle is isosceles triangle .
Answer:
I think what you meant to say is "If a triangle has 2 sides that are 4 cm and 20 cm, what are the possible lengths of the third side?"
Basically, when given 2 sides of a triangle, the third side must be GREATER than the DIFFERENCE of the other 2 sides and LESS than the SUM of the other 2 sides.
difference = 16 cm
sum = 24 cm
So, the third side must be greater than 16 cm and less than 24 cm
Step-by-step explanation:
Answer:
Answer : 1,3,5,15
Step-by-step explanation:
The factors of 15.
Answer:



Step-by-step explanation:
Given


See attachment
Solving for y
From the attachment:

and

Substitute DC for AD


Substitute values for AD and AC


Collect Like Terms


Solve for y








Answer:
Yes
I hope this answers your question!
Step-by-step explanation:
How do you estimate a division problem?
You can use multiplication to check your division answer this way.
1) Do the division problem.
2) Multiply the quotient times the divisor.
3) If there is a remainder, add it to the multiplication product.
4) Compare this answer to the dividend. They should be the same number (630 = 630).