Chloe, I'm bored of playing video games. Can we play something else?
Okay! Let's go play!
You go wait outside while I get the ball.
Sure. How about we play throw and catch outside?
Wow! This is cool! I'm going to try this out with other stuff
There's the ball but wow it's up high! I wonder how heigh the shelf is? I remember my teacher taught me yesterday how to work out the height of an object.
So it would be tan7= x/3then times both sides by 3 so it would be 3tan7. 3tan7 is approximately 0.37m above my head. I'm 1.63m tall so if I add my height to 0.37m, the cupboard's height should be 2m.
Hmm...I'd have to use tan to find the answer because tan is equal to the opposite side over the adjacent side
So I'm standing 3m away and looking up at the ball at a 7 degree angle, how tall is the shelf?
So tan12 is equal to x/4. Then, i have to times both sides by 4 and now I'm left with 4tan12. This is equal to 0.85m
Well, I'm standing 4m away from the door and looking up at a 12 dedgee angle.
What about the height of the front door?
I'm 1.63 so now I have to add that to 0.85m. The height of the door should be 2.48m tall.
I've been so distracted by finding the height of objects that I have forgotten about Lily!
What took you so long?
Oh, can you show me how to do it?
It might be hard for you to understand but i'll show you, using that tree next to you.
i'm sorry, Lily. I was having too much fun, using a technique i learnt in class yesterday to find the height of objects.
So now using this super cool thing called tan, this is what I have to do. So I know that tan29 is equal to x/6 now, I have to times both sides by 6 because that's the distance I'm standing away from the tree.
So that means I get 6tan29. This is equal to 3.32m. Now I add my height to 3.32 and get 4.95m.
So, I'm standing 6m away from the tree and looking up at it at a 29 degree angle. So using that information, I'm going to find the height of the tree.