The calculation is incorrect, because the slope is defined as

So, Emma has inverted numerator and denominator: she has calculated the inverse of the slope.
The correct calculation would be

Answer:
63
Step-by-step explanation:
Tan 0= opposite÷ adjacent
Tan 0= 6.7 ÷ 3.4
Tan 0 = 1.97
V= 63.09
V = 63
Use photomath
hope this helps
The volume of the solid obtained by rotating the region
bounded by the given curves about the specified line would be V ≈ 22 units³. I am hoping that this answer has
satisfied your query about and it will be able to help you, and if you’d like,
feel free to ask another question.