gaokao 2018 Q5

gaokao · China · national-I-arts 5 marks Not Maths

Given a cylinder with centers of the upper and lower bases at $O _ { 1 }$ and $O _ { 2 }$ respectively, a plane passing through the line $O _ { 1 } O _ { 2 }$ intersects the cylinder in a rectangle with area 8. Then the surface area of the cylinder is
A. $- 12 \sqrt { 2 } \pi$
B. $12 \pi$
C. $8 \sqrt { 2 } \pi$
D. $10 \pi$

Given a cylinder with centers of the upper and lower bases at $O _ { 1 }$ and $O _ { 2 }$ respectively, a plane passing through the line $O _ { 1 } O _ { 2 }$ intersects the cylinder in a rectangle with area 8. Then the surface area of the cylinder is

A. $- 12 \sqrt { 2 } \pi$\\
B. $12 \pi$\\
C. $8 \sqrt { 2 } \pi$\\
D. $10 \pi$

Paper Questions

Q1 Q2 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18