11.5 - Summary
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Practice Questions
Test your understanding with targeted questions
Find the curved surface area of a cone with radius 3 cm and slant height 4 cm.
💡 Hint: Use the formula C.S.A = πrl.
What is the total surface area of a sphere with radius 5 cm?
💡 Hint: Recall the formula 4πr².
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for the total surface area of a cone?
💡 Hint: Think about the round shape and the flat base.
True or False: The volume of a sphere is equal to 4/3πr³.
💡 Hint: Remember the fraction involved with the volume.
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Challenge Problems
Push your limits with advanced challenges
A cone has a height of 12 cm and a radius of 5 cm. Find its volume and total surface area.
💡 Hint: Use Pythagorean theorem to find the slant height first.
If a sphere has a surface area of 400π cm², what is its radius and volume?
💡 Hint: Remember how to rearrange the surface area formula to solve for radius.
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Reference links
Supplementary resources to enhance your learning experience.