Abd is a right angled triangle so by pythagoras we know

and to calculate h we need to use the sine rule

i hope this helps
C is the correct statement
∠CBE and ∠DEB are same side interior angles
Step-by-step explanation:

Answer:
The null hypo would be the difference is greater than 0
so the alternate hypothesis would be less than or equal to 0
H1: µd ≤ 0
Answer:
The third option
Step-by-step explanation:
the most reasonable