Trigonometry

Name sides and angles in a right-angled triangle

Identify ratio of sides in right-angled triangles

Identify sine, cosine and tangent ratios

Evaluate sine, cosine and tangent ratios

Find angles from sine, cosine and tangent measures

Evaluate sine, cosine and tangent expressions

Find side lengths in right-angled triangles

Find angles in right-angled triangles

Solve contextual problems in right triangles I

Solve for sides or angles I

Solve for sides or angles II

Angles of elevation and depression I

Solve problems involving two right-angled triangles

Solve contextual problems in right triangles II

Grade 10

Name sides and angles in a right-angled triangle

Interactive practice questions

Which of the following is the hypotenuse of the triangle shown?

A right-angled $\triangle ACB$△ACB has its right angle at vertex C, depicted as a small blue square. Vertex A is positioned at the top right, directly above vertex C, and vertex B is located to the left of vertex C.

$BC$BC

A

$AB$AB

B

$AC$AC

C

Easy

< 1min

Which of the following is the hypotenuse of the triangle shown?

Easy

< 1min

Which of the following is the opposite side to angle $\theta$θ?

Easy

< 1min

Which of the following is the adjacent side to angle $\alpha$α?

Easy

< 1min

Outcomes

10P.MT2.01

Determine, through investigation, the relationship between the ratio of two sides in a right triangle and the ratio of the two corresponding sides in a similar right triangle, and define the sine, cosine, and tangent ratios

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