Area of irregular shapes, the cuboid, polygons and prisms
Answers are for parents and teachers.
1
What is the area in cm² of a right triangle with legs 10 cm and 7 cm?
35
2
A 3 cm × 2 cm rectangle is cut from the corner of a 12 cm × 5 cm rectangle. What is the area of the rest in cm²?
54
3
A cuboid is 5 cm × 3 cm × 2 cm. What is its total surface area in cm²?
62
4
How many faces, edges and vertices does a pentagonal prism have? Find their sum.
32
5
What is the total surface area in cm² of a cube with edge 6 cm?
216