10. Measurement
iGCSE (2021 Edition)
10.14 Surface area of cones, pyramids and spheres
Interactive practice questions
The diagram shows a water trough in the shape of a half cylinder.
A water trough is in the shape of a half cylinder. The height of the cylinder measures $2.49$2.49 m. The radius of the half circular base measures $0.92$0.92 m. The non-visible part of the water trough is represented by dashed lines.
Find the surface area of the outside of this water trough.
Round your answer to two decimal places.
Medium
4 min
Consider the solid pictured and answer the following:
Hard
8 min
Find the surface area of the cone shown.
Round your answer to two decimal places.
Easy
2 min
The top of a solid cone was sawed off to form the solid attached. Find the surface area of the solid formed correct to two decimal places.
Easy
5 min
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