Find longest side of right-angled triangle

Use cos to calculate hypotenuse of right-angled triangle, using Casio calculator.
0:00 Introduction
0:16 Trigonometry
0:25 SOHCAHTOA
0:40 Label sides: hypotenuse, adjacent, opposite
1:22 Formula using cosine ratio = adjacent / hypotenuse
1:50 Rearrange formula
2:05 Use Casio calculator
2:35 Round answer to 3 sf
2:55 Use FIX on Casio calculator to round to 1dp
3:26 Check answer is sensible
3:50 Common error

[@pewok5482]

Omg this is so helpful, ty for this, the way u explain it is so easy to understand

[@MathsWithJay]

Thank you so much!

[@bluenosejay0761]

Trust me bruh bruh

[@profearthurito6993]

Greetings and blessings from San Juan de Lurigancho, Lima, Perú.

[@MathsWithJay]

@Profe Arthurito: Hello....do you teach mathematics?

[@profearthurito6993]

@@MathsWithJay YES.

[@aqibhussain9075]

q=p/r+s make p the subject HOW DO U THIS PLEASEEEE.pls reply

[@MathsWithJay]

ua-cam.com/video/TTa9fqmrCjM/v-deo.html is an example of rearranging a formula with a fraction

[@petitcoke]

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[@MathsWithJay]

100% in what?

[@petitcoke]

@@MathsWithJay life- I mean math- Oh wait, it's the same thing