Warm-upDay before Ch. 4 Test

Answer the following questions. Do not write the questions.1) What does CPCTC stand for?

2) What kind of construction is show below?

3) What congruence conjecture is show below?

4) Find the measures of the three angles below.

H.W. Answers for 3.7 pg 181 - 182 #1-3, #6 and 7

H.W. Answers for 4.7 pg 239 - 240 #2- 6 all problems.

#4 and 5; 4.7 Problems

#6 and 4.7

Student of the day!Block 1

Student of the day!Block 3

Filling the remaining ConjecturesC-9 Angle Bisector Concurrency Conjecture – The three angle

bisectors of a triangle ________________.C-10 Perpendicular Bisector Concurrency Conjecture - The three

perpendicular bisectors of a triangle ______________ . C-11 Altitude Concurrency Conjecture – The three altitudes (or the

lines containing the altitudes) of a triangle ______________.C-12 Circumcenter Conjecture – The circumcenter of a triangle

_________________. C-13 Incenter Conjecture – The incenter of a triangle

_________________.

Remaining Ch. 3 and Ch. 4 ConjecturesC-14 Median Concurrency Conjecture – The three medians of

triangle ____________________.C-15 Centroid Conjecture – The centroid of a triangle divides eachMedian into two parts so that the distance from the vertex to the

centroid ________ is the distance from the centroid to the midpointof the opposite side.C- 16 Center of Gravity Conjecture – The ___________ of a triangleis the center of gravity of the triangular region.C-27 Vertex Angle Bisector Conjector – In an isosceles triangle , the

bisector of the vertex angle is also __________ and __________.C-28 Equilateral/Equiangular – Every equilateral triangle is____________ , and , conversely , every equiangular triangle is

_____________.

Practice Test in Class: pg 251 #3 -5; 10-24 #31 and #35

• Work quietly for 30 minutes.• I will finish checking notebooks during this

time.• Once the 30 minutes are up ; you may discuss

the problems at the table.• Then I will post the answers and answer

questions.• If you finish before the 30 minutes, start the

reviewsheet.

Ch.4 Practice Test

Ch. 4 Practice Test

Ch. 4 #35 Practice Test