Question

In ΔABC shown below, Line segment AB is congruent to Line segment BC.

Answer 1

Given: line segment AB≅line segment BC

Prove: The base angles of an isosceles triangle are congruent.

The two-column proof with missing statement proves the base angles of an isosceles triangle are congruent.

Answer 2

Which statement can be used to fill in the numbered blank space?

BD = AC

BD = BD

AC = AC

AD = DC

Answer 3

@jigglypuff314 Hey I need some help on this

Answer 4

@iambatman help

Answer 5

are these two separate problems?

Answer 6

nope

Answer 7

oh okay, then gimme a sec :)

Answer 8

Reflexive Property -> a = a

in geometry proofs, this property can be used when two polygons share a side
it's like saying BD of one triangle is equal to BD of the other triangle
because BD is one (shared) segment

Answer 9

the last one

Answer 10

huh?

Answer 11

is it right

Answer 12

mmm not quite... did you read what I wrote?

Answer 13

the first one

Answer 14

(I don't think I mentioned any other segment other than BD)
"in geometry proofs, this property can be used when two polygons share a side
it's like saying BD of one triangle is equal to BD of the other triangle
because BD is one (shared) segment"

Answer 15

oh sorry I get it now so it's BD = BD

Answer 16

yep :)

Answer 17

Can u help me with one more

Answer 18

sure :)

Answer 19

Triangle ABC is shown below.

Answer 20

Given: ΔABC

Prove: All three angles of ΔABC add up to 180°.

The flow chart with missing reason proves the measures of the interior angles of ΔABC total 180°.

Answer 21

Which reason can be used to fill in the numbered blank space?

Associative Property of Addition

Triangle Exterior Angle Theorem

Angle Addition Postulate

Commutative Property of Addition

Answer 22

the angles you are looking at are
http://www.icoachmath.com/math_dictionary/Angle_Addition_Postulate.html

Answer 23

The third one

Answer 24

yep :)