Think you’ve got your head wrapped around Congruent Triangles? Put your knowledge to
the test. Good luck — the Stickman is counting on you!
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?
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, 2a)
The coordinates of C are (2b, 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