# math

posted by .

A is the point (1,2), B is (7,4) and C is (5,6). Calculate the length of each side of the triangle ABC.

• math -

Use the distance formula for finding points on the xy-plane.

Let d = distance.

d = sqrt{(x2 - x1)^2 + (y2 - y1)^2}

You must apply the above formula to find the distance between points A and B, B and C and A and C.

So, you must apply the distance formula 3 times.

Got it?

If not, write back.

• math -

emm nope i don't get it, sorry, can you do this using pythagoras??

## Similar Questions

1. ### Math

Right triangle ABC is similar to triangle XYZ. If the length of side AB is 30 inches, the length of side BC is 60 inches, and the length of side YZ is 10 inches, what is the length of side XY?
2. ### math

Triangle ABC is an equilateral triangle with side length AB=22. Place a point D on the line segment BC. Extend BC to the point E such that BD=CE. point E is defined as lying on BD and satisfying BD=CE.What is the value of DE?
3. ### geometry

Open that link please please help me with my assignments 1. in the figure , the areas of traingle cef, triangle abe, triangle adf are 3,4, and 5 respectively. find the area of triangle aef 2. equialateral triangle abc has an area of …
4. ### Math

In triangle ABC, D bisects side BC, G bisects side AB, and the points E and F trisect side AC. What is the area of the shaded polygon, if the area of ABC is 108?
5. ### Math

In triangle ABC, D bisects side BC, G bisects side AB, and the points E and F trisect side AC. What is the area of the shaded polygon, if the area of ABC is 108?

In triangle ABC, D bisects side BC, G bisects side AB, and the points E and F trisect side AC. What is the area of the shaded polygon, if the area of ABC is 108?
7. ### math

if triangle ABC is similar to triangle DEF and the scale factor is 3, what is the length of side EF if side BC is 6m?
8. ### Math

∆ABC has the points A(1, 7), B(-2, 2), and C(4, 2) as its vertices. The measure of the longest side of ∆ABC is units. ∆ABC is triangle. If ∆ABD is formed with the point D(1, 2) as its third vertex, then ∆ABD …
9. ### Math

In a triangle ABC,AB=5cm,BC=12cm,angle ABC=90Â°calculate 1)the length of AC. 2)the area of the triangle 3)the length of the perpendicular from B to AC
10. ### Math

ABC is a triangle in which B=90 if AB=6 BC=8 then calculate the length of the third side of the triangle

More Similar Questions