Line segments ad and be intersect at c, and triangles abc and dec are formed. they have the following characteristics: ∠acb and ∠dce are vertical angles ∠b ≅ ∠e bc ≅ ec which congruence theorem can be used to prove △abc ≅ △dec? hl asa sss sas

The congruence theorem which can be used to prove △ABC ≅ △DEC is:

Angles B and E are congruent.              >    Angle

Sides BC and EC are congruent.               >    Side

Vertical angles ACB and DCE are congruent.    >    Angle

This states that two triangles are congruent if they have the same shape and size.

With this in mind, we can see that there are different congruence theorems which includes:

Read more about congruence here:
link

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72