Presentation for maths practice

1. 1. Calculate the area of a circle with a radius of 5cm
2. Write down the number of faces,
edges and vertices of this shape:
3. Write down the letter of the shape that has
a) No lines of symmetry
b) Exactly one line of symmetry
c) Exactly two lines of symmetry
d) Rotational symmetry of order two

2. • To draw a plan/ elevation of a3D shape
• To draw the net of a 3D shape
• To be able to carry out reverse percentage problems

3. Three-dimensional shapes
Some examples of three-dimensional shapes include:
A triangular prism
A square-based
pyramid
A cylinderA cube
A sphere A tetrahedron

4. Cubes
Plans and Elevations
Front Elevation
Side Elevation
Plan View
A B C
Decide which of the
views below is either a
plan, front elevation or
side elevation of the
object shown.
Plan Front Elevation Side Elevation
1

5. Plans and Elevations
Front Elevation
Side Elevation
Plan View
A B C
Decide which of the
views below is either a
plan, front elevation or
side elevation of the
object shown.
Front Elevation Plan Side Elevation
2

6. Plans and Elevations
Front Elevation
Side Elevation
Plan View
A B
C
Decide which of the
views below is either a
plan, front elevation or
side elevation of the
object shown.
Side Elevation Front Elevation Plan
3

7. Some for you to try..
Draw the plan, front and side elevation of the shapes below

8. Nets

9. Nets
What 3-D shape would this net make?
A cuboid

10. Nets
What 3-D shape would this net make?
A triangular prism

11. Nets
What 3-D shape would this net make?
A tetrahedron

12. Nets
What 3-D shape would this net make?
A pentagonal prism

13. Lesson 14
Nets and 3D Drawings
Mathswatch clip (81).

14. Exam questions

15. Exam questions