ISEE Word Problems Question 214: Answer and Explanation
Home > ISEE Test > ISEE Word Problems Practice Tests
Test Information
- Use your browser's back button to return to your test results.
- Do more ISEE Word Problems Practice Tests.
Question: 214
2. The surface area of a right circular cylinder is represented by SA = 2πr2 + 2πrh, where r is the radius of the cylinder and h is its height. If the surface area of a right circular cylinder is 36π and its radius is 3, what is its height?
- A. 2
- B. 3
- C. 4
- D. 5
Correct Answer: B
Explanation:
The answer is B
Using the given formula, surface area, and radius, set up an equation to solve for the height: 36π = 2π(3)2 + 2π(3)(h) = 18π + 6πh. Subtract 18π from both sides: 18π = 6πh. Divide both sides by 6π: h = 3.