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There are some key words that you need to know for circles: radius, circumference, diameter, sector, segment, tangent, chord and arc. In this video you will discover what they all mean.

This video discusses the topic of circles.

This online resource discusses the distribution of earth's water.

This video explains the equation of a circle.

Use the dynamic worksheet to practice simplifying expressions with fractional exponents, rewriting them as radicals.

This YouTube video will guide you through a fun activity where you will draw the earth's continents and oceans.

In this section, you will:

• Evaluate square roots.
• Use the product rule to simplify square roots.
• Use the quotient rule to simplify square roots.
• Add and subtract square roots.
• Rationalize denominators.
• Use rational roots.

This online resource discusses the importance of the ocean, the layers and composition of the ocean and how it moderates climates.

Exercises requiring expressions to be re-written in 'Simple Radical Form'.

This online resource investigates the features and topology of the ocean floor, the effects of wave erosion and the landforms created by coastal depositions.