2geometry questions.. will mark brainliest

1=given the result from c above, if the measure of angle efb is 43.6°, what is the measure of angle fbc? how do you know?

2=if triangle dcb is congruent to triangle abc, what kind of shape is abcd? how do you know?

∆red ≅ ∆ by rule will give brainiest if possible

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.