- How manysquarefeet (excludingthe roof) are thereon the surfaceof the barn to be painted?
- If a gallonof paintcovers250 squarefeet, how manygallonsof paintare neededto paintthe barn?
- A cardboardbox is a perfectcubewith an edgemeasuring17 inches.How manycubicfeet can it hold?
- A swimmingpool is 16 feet wide,32 feet long and is uniformly4 feet deep.How manycubicfeet of water
can it hold? - A cerealbox has length25 cm, width9 cm and height30 cm. How muchcerealcan it hold?
Answers
- 40.5 in^2
- 838 cm^2
- 252 squareunits
- 1484.6squareunits
- 7981.3cubicunits
- 2450squarefeet
- 10 gallonsof paint
- 2.85 cubicfeet (be carefulhere.The unitsin the problemare givenin inchesbut the questionasksfor
feet.) - 2048cubicfeet
- 6750cm
3
Cylinders
LearningObjectives
- Find the surfacearea of cylinders.
- Find the volumeof cylinders.
- Find the volumeof compositethree-dimensionalfigures.
Introduction
Acylinderis a three-dimensionalfigurewith a pair of paralleland congruentcircularends,orbases. A
cylinderhas a singlecurvedside that formsa rectanglewhenlaid out flat.