Question

help!!!! medal will be given

Answer 1

hmmm how do you know the \(\bf \overline{RT}\cong \overline{ED}\)?

Answer 2

im not sure :(

Answer 3

welll
let's take a peek at those triangles

Answer 4

one sec

Answer 5

okay thank you so much

Answer 6

so, on the 1st triangle we have

Answer 7

40?

Answer 8

all internal angles in a triangle = 180
thus
80 + 60 + x = 180
x = 180 -80-60
x = 180 - 140
x - 40
yes

so, lets take a look at the other triangle now

Answer 9

actually.. hold the mayo, lemme redo that graph

Answer 10

80

Answer 11

well... or better put

Answer 12

well... yes
is 80
because 180 - 60 - 40 = 180 - 100 = 80
so
let's see both graphs again
one sec

Answer 13

okay thank you

Answer 14

both have the same angles

and have 1 common side
so, one could use ASA or SAS for congruence

Answer 15

yes !

Answer 16

and notice the pictures
RT is congruent with?

well, with FD :)