Question

How do I solve this!

Answer 1

This is my proof can someone help
<E = <F = 60º given
<G = <G = 90º given
<D = <E = 30º given
DEG is similar to DEF AAA theorem

Answer 2

Well angle D is common to both triangles

<DEG = <EFG given, both 60

so the similarity is proven by Angle Angle postulate

Answer 3

you should use 3 letters to name the angles. <E is not clear

Answer 4

I've done these, but I absolutely hate proofs. I think that on the right side for "<D=<E", it's not given, but you used the Triangle Sum Theorem to find the measure of <D and <E.

Answer 5

both triangles have an angle = 60
those angles are equal to each other. (things equal to the same thing are equal to each other)

both triangles share a common angle <EDG
so you can say <EDG = <EDG (reflexive property)

Answer 6

well for the Angle Angle postulate you only need 2 angles.... not 3

Answer 7

You can say the third angle is 180 - sum of the other two
if both triangles have the same two angles, this forces the third angle to be congruent.