Recent content by garyadamson

Thanks for your help But how would I work out the size of angle X. Would cos, sin or tan have to be used?

I am trying to work out the area of the shaded part of the diagram. I've figured that If I was to work out the area of the triangle (27cm) and take it away from the sector, I'd have the area of the shaded bit. I'm guessing that I'd have to use trigonometory to find the area of the sector, I...

Thanks, I think I was just going through a phase of thinking too hard without taking a step back and lookinga at the bigger picture. I fully understand now!

Hmmmm... Thanks, but what exactly must I do. Any chance of a step by step guide of how you'd do it?

I was hoping somebody could help me with the "wave speed" equation relating to the EM spectrum. The equation is: Speed = Frequency x wavelength (v=fλ) I believe the speed of all EM waves is 3 x 108 this all seems simple enough, however i find putting this into practice somewhat complicated...