Trigonometry for real!

Lesson Objectives:• To be able to apply trigonometry in real life

How can we work out the height?

?

Can we use trigonometry?

6m40o

?H

A

O O T A

O = Tan angle x A = Tan 40 x 6 = 5.03m

How can we measure the angle?

Make your clinometer

How can we measure the length?

Tape measure ?Trundle Wheel?

What data will you be recording?

Design a data collection table to use next lesson

You need to calculate the height of:

• The Gym• The Hall• The Maths block• The Canteen• The Science block• The height of the alarm on the main building

Answers!

Discussion Points

• How close were the estimations you made?• How reliable do you think your final answers

are?