Monday

September 1, 2014

September 1, 2014

Posted by **Jim** on Thursday, July 26, 2007 at 9:59am.

The triangle is isosceles if AB = BC, or BC = AC, or AB = AC. Without that information on side lengths, I can't tell you if it is or not.

B(1,5),c(5,3),and a(1,1)

Do you know how I can find x if AB = 4x and BC = 2x + 10.

As drwls pointed out, using these 3 points you have to find the lengths of AB, BC, and AC.

if two of them are equal you have an isosceles triangle, if all three are equal the triangle is equilateral

Use your "distance between two points" formula

is AB equal to BC???

if so, then set 4x=2x+10 and solve. Easy!!

otherwise the question makes no sense

**Answer this Question**

**Related Questions**

Math - A triangle has 2 angles that measure 60 each. Which of the following best...

geometry - The perimeter of right triangle RST is equal to the perimeter of ...

Math (Geometry) - The perimeter of right triangle ABC is equal to the perimeter ...

college algebra - an isosceles triangle has at least two sides of equal length. ...

Math - If all of the following triangles have the same perimeter, which has the ...

Math - Triangle ABC is circumscribed about circle O and D,E, and F are points of...

math - the perimeter of isosceles triangle is 70 d. of the length of a leg of ...

math - The vertices of a triangle are listed below. H(-2,4), I(22,4), J(10,-1) ...

math - The base of an isosceles triangle is four less than the sum of the ...

GEOMETRY - Which statement is the contrapositive of the following conditional: ...