Question

Which of the following can Thomas use prove that side AB is equal to side DC?

Answer 1

In a quadrilateral ABCD, the diagonals intersect at point T. Thomas has used the Alternate Interior Angles Theorem to show that angle ADB is congruent to angle DBC and that angle DBA is congruent to BDC.

Which of the following can Thomas use prove that side AB is equal to side DC?

Answer 2

a: AC is congruent to AC
b: AC is congruent to DB
c: TA is congruent to TC
d: DB is congruent to DB

Answer 3

i think its b

Answer 4

How ?

Answer 5

because they are congruent because they both are bisecting the quadrilateral.. Im really confused

Answer 6

what about D?

Answer 7

consider triangles ABD and CBD then think

Answer 8

That was my second guess because they both share it

Answer 9

So it's D?

Answer 10

Can you help me with another one?

Answer 11

So which would it be?

Answer 12

D or A?

Answer 13

it is D

Answer 14

Okay thanks so much

Answer 15

yw