Ch. 2 Review

Write a conjecture given that △ABC is an equilateral triangle.

• It is a right triangle

• AB=BC=CA

• It has an obtuse angle

• 
  

  $AB\ne BC$

If ∠ A and ∠ B are complementary, then m∠ A = 45. Find a counterexample.

• m∠ A = 45 when m∠ B = 45

• m∠ A = 40 when m∠ B = 140

• m∠ A = 40 when m∠ B = 50

Tags

CCSS.7.G.B.5

Find the next term in the sequence 1, 4, 9, 16, 25 . . .

• 36

• 34

• 35

• 49

Tags

CCSS.HSF.BF.A.2

Determine the intersection of lines m and p.

• a plane

• a line segment

• 2 points

• a point

• lines cannot intersect

Tags

CCSS.HSF-IF.C.7A

Complete the following statement: If AB=BC and A, B, and C are collinear, then B is the _________ of 𝐴𝐶.

Name the definition, property, postulate, or theorem that justifies this statement: If x = 2, then 2 = x.

• reflexive property

• symmetric property

• transitive property

• distributive property

Tags

CCSS.7.EE.A.1

Name the definition, property, postulate, or theorem that justifies this statement: If x + 3 = y, then x = y – 3.

• addition property

• distributive property

• subtraction property

• substitution

Tags

CCSS.HSA.REI.A.1

Determine whether the conjecture is true or false:

Given: Two planes intersect. Conjecture: The planes can intersect only at one point.

• TRUE

• FALSE

Identify the conclusion of the statement:

" Either 𝑥=2 or 𝑥=−2 if 𝑥²= 4. "

(HINT: Rewrite the statement in if-then form!)

• "x²=4"

• "either x=2 or x=-2"

• "x=2"

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Find the converse of the statement: "If two angles are supplementary and congruent, then they are right angles."

• If 2 angles are not right angles, then they are not supplementary and congruent.

• If 2 angles are not supplementary and congruent, then they are not right angles.

• If 2 angles are right angles, then they are supplementary and congruent.