Masquerade ball
Marie wants to make a cone-shaped witch's hat for a masquerade ball. How much material will it need if it counts on an annular rim with diameters of 28cm and 44cm? The hat side length is 30cm. Add 5% of the material to the bust. Round to cm2.
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- arithmetic
- rounding
- solid geometry
- cone
- surface area
- planimetrics
- circle
- area of a shape
- annulus
- basic functions
- percentages
Units of physical quantities:
Grade of the word problem:
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