Answer:
see explanation
Step-by-step explanation:
Using the Pythagorean identity
sin²θ + cos²θ = 1 ( divide terms by sin²θ )
+ = , that is
1 + cot²θ = cosec²θ ← as required
My work is in the picture.
54°
180° - 52° - 30° = 98°
180 - 98° - 28° = 54°
b=3 units
h=5 units
a=7.5 units
i thnk u can figure this out
