# maths

More Options: Make a Folding Card

#### Storyboard Description

This storyboard does not have a description.

#### Storyboard Text

• stand in front of the tree and measure your distance from it using tape measure. ﻿E.g 4.2m
• Measure your eye level height to the ground  using a tape measure. ﻿ Eg. 1.58m
• the string should be at the front of the clinometer, grab the straw and look through it﻿
• using your clinometer,  measure the angle of the tree.
• from a friend/partner, ﻿ask where the string lies
• find the very top of the tree through the straw. ﻿
• behind the string should be the angle (stay still for accuracy) eg. 20 degrees
• ﻿write down the distance and angle of the tree.
• ﻿angle = 20 distance = 4.2m
• ﻿draw a right angle triangle and label the distance and angle
• using sin, cos, tan, figure what fits with the placement.﻿
• 20﻿
• 4.2m﻿
• x﻿
• find the height using tan ﻿
• tan20 = x/4.2 x = 4.2tan(20) = 1.5 1.5 + 1.58 (﻿add eye level height) x = 3.1m
• height = 3.1m﻿
Explore Our Articles and Examples

### Teacher Resources

Lesson Plans Worksheet Templates

### Film Resources

Film and Video Resources
Video Marketing