Warmup: Angles in Quadrilateralsbolusmath.weebly.com/uploads/5/7/9/0/57901811/quadrilaterals... · pg. 1249 (1-4, 7-10, 15, 17) 28° 57° ... C. Has at least one pair of parallel

Warmup: Angles in Quadrilaterals

For 1-3, find all the missing angle measures.

1) 2)

3)

105°

75°

75°

52°

128° 128°

95°

120°

Homework Answers

pg. 1249 (1-4, 7-10, 15, 17)

28° 57°

Quiz Tomorrow

Know everything on the review sheet How to draw the special segments of

triangles Triangle Midsegment Theorem All Properties of Quadrilaterals

Know how to do proofs with diagonals and match statements and reasons in a proof

Write a two-column proof.

Given: ABCD is a parallelogram.

Prove: ∆AEB ∆CED

FACT: The diagonals of a rectangle are congruent.

A B

C D

𝑨𝑪 ≅ 𝑩𝑫

How could we

prove this???

FACT: The diagonals of a rhombus are perpendicular.

A

B

C

D

𝑨𝑪 ⊥ 𝑩𝑫

How could we

prove this???

Most specific Name?

Rectangle

Most specific Name?

Rhombus

Most specific Name?

Trapezoid

Most specific Name?

Kite

Most specific Name?

Parallelogram

Most specific Name?

Quadrilateral

Most specific Name?

Isosceles Trapezoid

Most specific Name?

Kite

Most specific name?

Parallelogram

Which is not necessarily a rhombus?

Which MUST be a square?

Review Sheet