Topics
4. Trigonometry
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AustraliaNSW
Year 11

4.04 Area of a triangle

Lesson
Worksheet
Practice

Interactive practice questions

Calculate the area of the following triangle.

Round your answer to two decimal places.

A triangle is depicted with the measurements of its two sides and their included angle. The included angle, highlighted by a blue-shaded arc, measures $50^\circ$50° and is adjacent to sides measuring $12$12 m and $13.1$13.1 m.
Easy
2min

Calculate the area of the following triangle.

Round your answer to two decimal places.

Easy
1min

Calculate the area of the triangle.

Round your answer to two decimal places.

Easy
< 1min

Find the area of the triangle in the diagram.

Easy
1min
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Outcomes

MA11-1

uses algebraic and graphical techniques to solve, and where appropriate, compare alternative solutions to problems

MA11-3

uses the concepts and techniques of trigonometry in the solution of equations and problems involving geometric shapes

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