Question

I'm so stuck plz help me!!!

Answer 1

The answer I got was 3-root 3. So a = 3 and b = -

Answer 2

cd is equal to this: first calculate AB by sin30 which is radical 3 then by sin45 you know bc is radical 3 too then by fisaghures ( idk what you call it)
calculate bd at the end you just gotta do this: bd-bc




`3 - √(3)`