I believe the points should be as follows : X, S, Y, and U.
I believe 64x-8 is the correct answer.
They could look at the length of the book and the size of the font to estimate the length of a book.
Answer:
178.3 mm²
Step-by-step explanation:
Surface area = Base area + 3 x side triangles area
Sₐ = 43.3 + 3 x (1/2 x (10 x 9)) = 43.3 + (3 x 45) = 178.3
