Civil Service Exam Reviewer · Measurement and Geometry · hard
A garden 21 m by 10 m is surrounded by a walkway 2 m wide. What is the area of the walkway?
- 66 m²
- 124 m²
- 140 m²
- 350 m²
Answer
C. 140 m²
Solution
Outer rectangle = 25 × 14 = 350 m². Minus garden 210 m² = 140 m².
More Measurement and Geometry questions
- What is the volume of a sphere with a radius of 12 cm? (π = 3.14)
- What is the volume of a cone with a radius of 6 cm and a height of 9 cm? (π = 3.14)
- A cylindrical water tank has a radius of 70 cm and a height of 180 cm. How many liters can it hold? (π = 3.14, 1 L = 1000 cm³)
- A window is shaped like a 15 dm × 9 dm rectangle topped by a semicircle whose diameter is the 9-dm side. What is the window's total area?…
- A runner moves at 28 m/s. How far in kilometers does she travel in 10 minutes?
- An open-top box (no lid) is 25 cm long, 25 cm wide and 12 cm high. What is the area of material used?
- A solid metal cube with 20-cm edges is dropped into a rectangular aquarium 59 cm long and 25 cm wide, fully submerging it. By how much…
- A right triangle has a hypotenuse of 26 cm and one leg of 10 cm. What is its area?
- A rhombus has diagonals of 10 cm and 10 cm. What is its area?
- On a map with scale 1 cm : 200 m, a park occupies 8 cm². What is its actual area?