# Congruent Triangles: Ordination, Co. Quiz

Think you’ve got your head wrapped around

*? Put your knowledge to the test. Good luck — the Stickman is counting on you!***Congruent Triangles**Q. A triangle's coordinates are

*A*(0, 0),*B*(0, 3), and*C*(3, 0). What kind of triangle is ∆*ABC*?Acute scalene

Obtuse equilateral

Right isosceles

Obtuse isosceles

Acute isosceles

Q. A triangle's coordinates are

*A*(-2, 0),*B*(1, 7), and*C*(4, 0). What kind of triangle is ∆*ABC*?Scalene

Isosceles

Equilateral

Right

None of the above

Q. A triangle's coordinates are

*A*(-8, 2), B (3, 9), and C (5, -2). What kind of triangle is ∆*ABC*?Scalene

Isosceles

Equilateral

Right

None of the above

Q. An equilateral triangle has two points at and (-1, 0). Where will the remaining point be?

(-3, 0)

(-2, 0)

(0, 0)

(1, 0)

(3, 0)

Q. What can be said about ∆

*AOB*?

∠

*ABO*≅ ∠*OAB*∆

*AOB*is a right triangle∆

*AOB*is an isosceles triangle*AO*≅

*BO*

All of the above

Q. If

*C*is the midpoint of*AB*, which of the following is true?

The coordinates of

*C*are (*a*/2,*b*/2)The coordinates of

*C*are (*b*,*a*)The coordinates of

*C*are (*a*,*b*)The coordinates of

*C*are (*b*, 2*a*)The coordinates of

*C*are (2*b*,*a*)Q. What is the distance from

*A*to*B*?

*a*+

*b*

*ab*

Q. What is the distance from

*C*to the origin?

Q. Which of the following triangles are isosceles?

∆

*AOB*∆

*ACO*∆

*BCO*Both (B) and (C)

(A), (B), and (C)

Q. Which of the following is false?

∆

*ACO*≅ ∆*BCO*∠

*ACO*and ∠*OCB*are supplementary∠

*AOC*and ∠*BOC*are complementary*CO*≅

*AC*≅

*CB*