4.3 CALCULATING EDGES IN A RIGHT-ANGLED TRIANGLE
Learning objectives
At the end of this paragraph you are able to...
...calculate the hypotenuse in a right-angled triangle
...calculate the adjacent edges in a right-angled triangle using Pythagoras.
...tCalculate distances on a set of axes.
...use the inverse Pythagorean Theorem.
Explanation videos
Calculating the hypotenuse
In this video you will learn how to calculate the hypotenuse using the Pythagorean Theorem.
Calculating the adjacent edges
In this video you will learn how to calculate the adjacent edges in a right-angled triangle using the Pythagorean Theorem
Distances on a set of axes
In this video you will learn how you can calculate distances on a set of axes using the Pythagorean Theorem.
The inverse Pythagorean Theorem
In this video you will learn how you can check whether a triangle is right-angled or not.
Exercises
Book: NUMBERS AND SPACE
Page 155: ex 25, 27, 28 (Calculating the hypotenuse)
Page 157: ex 33b, 34 (Distances on a set of axes)
Page 159: ex 36 (Calculating the adjacent)
Page 160: ex 40 (The inverse Pythagorean Theorem)
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