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Mathematics - Lower Secondary - yTeach Publisher - Whiteboard presentation - Teaching object - Teaching resource - Trigonometric ratios in a right-angled triangle

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Trigonometric ratios in a right-angled triangle

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Subject

Mathematics

Grade

Lower Secondary

Publisher

yTeach Publisher

Resource types

Whiteboard presentation

Teaching type

Teaching object

Usage

Teaching resource



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Description At the end of this activity, students should be able to:
use the sine, cosine and tangent ratios to find angles
- find the sine, given the cosine (and vice versa)
- solve triangles
- use exact values for selected angles
- use a calculator to find trigonometric ratios
- use a calculator to find angles, given trigonometric ratios.
Partner resource
Trigonometric ratios in a right-angled triangle [Class activity]
Consists of...
Angles in a right-angled triangle [Whiteboard exercise]
A right-angled triangle – opposite side [Whiteboard exercise]
A right-angled triangle – adjacent side [Whiteboard exercise]
A staircase [Animation]
Trigonometric ratios – tangent [Whiteboard exercise]
Other trigonometric ratios [Whiteboard exercise]
How do you find the ratio? [Animation]
Finding ratios [Whiteboard exercise]
A closer look at the trigonometric ratios [Simulation]
A closer look at the sine [Whiteboard exercise]
A closer look at the sine, the cosine and the tangent [Whiteboard exercise]
The measure of the angle [Whiteboard exercise]
Unknown side of a triangle [Animation]
Finding sides in the triangle [Whiteboard exercise]
Finding sides in the hexagon [Whiteboard exercise]
Unknown angle in a triangle [Animation]
The measure of an angle [Whiteboard exercise]
Finding the measure of an angle [Whiteboard exercise]
Exact values of trigonometric ratios for selected angles [Animation]
Exact values of trigonometric ratios [Animation]
Relations between the sine and the cosine [Whiteboard exercise]
Trigonometric ratios – the angles of the triangle [Whiteboard exercise]
Trigonometric ratios [Whiteboard exercise]
The perimeters of the triangles – trigonometric ratios for selected angles [Whiteboard exercise]
The sides of the triangles – trigonometric ratios for selected angles [Whiteboard exercise]
The perimeters of the triangles – trigonometric ratios for selected angles [Whiteboard exercise]
Finding the measures of all angles and sides [Animation]
Solving triangles [Whiteboard exercise]
Solving triangles [Whiteboard exercise]
Relevant to...
Copyright YDP SA
Keywords

right, ratio, angle, triangle, right-angled, tangent, ratios, trigonometric, sine, cosine, Trigonometric ratios in a right-angled triangle

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