Trigonometry

Sides of a Right-Angled Triangle

Ratio of Sides in Right-Angled Triangles

Trigonometric Ratios

Calculating Trigonometric Expressions

Finding Unknown Side Lengths Using Trig Ratios

Finding Unknown Angles

Applications to Geometry

Solve contextual problems in right triangles

United Kingdom England

Key Stage 3

Finding Unknown Side Lengths Using Trig Ratios

Interactive practice questions

Find the value of $f$f, correct to two decimal places.

A right-angled triangle with a $27$ -degree angle at its base is shown. The side opposite the $27$ -degree angle is labeled as "$f$f m" indicating a length in meters that is not specified. The side adjacent to the $27$ -degree angle is labeled " $8$ m," indicating a length of $8$ meters. The hypotenuse, connecting the vertex of the $27$ -degree angle to the right angle, is not labeled. The right angle is indicated by a small square at the triangle's base

Easy

2min

Find the value of $f$f, correct to two decimal places.

Easy

1min

Find the value of $f$f, correct to two decimal places.

Easy

1min

Find the value of $f$f, correct to two decimal places.

Easy

1min

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