## Geometric Proofs Resources Given: triangle ABC. Prove: m<1 + m<2 + m<3 = 180

Translate ΔABC by vector AB  to form straight <ABB'  along the vector.  The isometric properties of translation preserve _________, thus m<1 = m<B'BC'.  Since... If two different lines are parallel to a third line, the two lines are not parallel to each other.

is it true or false that if two different lines are parallel to a third line, the two lines are not parallel to each other? Segment AB is congruentbto segment AB. What property does this statement shows?

Segment AB is congruent to segment AB. What propert does this statement shows? Complete the two-column proof

Given: triangle SVX is congruent to triangle UTX and Line SV is || to line TU   Prove: VUTS is a parallelogram   Image: It's a parallelogram, with one line going from corner...  Image 33k

Let ABC be an isosceles triangle with AB = AC. Suppose that the bisector of angle B meets AC at D and that BC = AD+BD. Determine angle... Write a two column proof!

Given: Line Segment AB ≅ Line Segment CD, Line Segment BC ≅ Line Segment DA   Prove: △ABC ≅ △CDA

Statements 1. O is the midpoint of Line Segment MQ. 2. 3. O is the midpoint of Line Segment NP. 4. 5. <MON ≅ <QOP 6. △MON ≅ △QOP   Reasons 1. Given 2...

Statements 1. Line Segment AB ≅ Line Segment CD  2. Line Segment AB || Line Segment CD 3. <ABC ≅ <DCB 4. Line Segment BC ≅ Line Segment CB 5. △ABC ≅ △DCB   Reasons 1... Prove using a paragraph proof.

Statements:  9 = 4x - 3(x - 2)  9 = 4x - 3x + 6  9 = x + 6  3 = x  x = 3   Reasons: Given       ... Given: m ⊥ l, n ⊥ l. Prove m || n

Statements: m ⊥ l, n ⊥ l <1 is a right angle <2 is a right angle <1 =~ <2 m || n    Reasons: Given      ... Given: AL = SK ; Prove: AS = LK

Could you prove and explain how you did it/ what properties you used.     A____L_________S____K    <---- Line Segment