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Geometry

Nets of 3-dimensional shapesGeometry

Circles and circumference Geometry

Areas and sectors of circles- Home
- NZ Year 8 Maths
- Introduction to 3-Dimensional Figures

Still Confused?

Try reviewing these fundamentals first

Geometry

Nets of 3-dimensional shapesGeometry

Circles and circumference Geometry

Areas and sectors of circlesStill Confused?

Try reviewing these fundamentals first

Geometry

Nets of 3-dimensional shapesGeometry

Circles and circumference Geometry

Areas and sectors of circlesNope, got it.

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Get Started Now- Intro Lesson: a6:18
- Lesson: 1a2:41
- Lesson: 1b1:42
- Lesson: 22:22
- Lesson: 3a3:04
- Lesson: 3b2:31

As long as we have the diameter or radius and the height of the cylinder, we are able to find its surface area in no time. The surface area of a cylinder is basically adding the surface are of a rectangle and two circles together. The most difficult part is to find the circumference of the circles, which is also one of the sides of the rectangle.

Basic Concepts: Nets of 3-dimensional shapes, Circles and circumference , Areas and sectors of circles

Related Concepts: Surface area of 3-dimensional shapes, Surface area and volume of cylinders, Arcs of a circle

- Introductiona)
- What is Area?
- What is Surface Area?
- How to find the Area of a Cylinder?

- 1.Determine the surface area of the cylinder.a)height: 7 cm, radius: 3 cmb)height: 12 cm, radius: 3 cm
- 2.Find the surface area of the tube below.

- 3.Find the surface area of the tube below.

a)Which cylinder has a larger surface area?b)Change the height of cylinder A so that cylinders A and B will have the same surface area.

22.

Introduction to 3-Dimensional Figures

22.1

Introduction to surface area of 3-dimensional shapes

22.2

Nets of 3-dimensional shapes

22.3

Surface area of prisms

22.4

Surface area of cylinders

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