pg.110 Q.4

Find the height of the pole where the guy wire is attached to the nearest tenth of a metre.

Sorry there is no pic.

If the guy wire(c,10m) is the hypotenuse and the ground(a,2m) is one of the legs , then the pole(b) is the second leg.To do this we need the work.

c2 -a2=c2

10m2-2m2=b2

(10x10)-(2x2)=b2

100m-4m=96

square root of 96 =9.78 something,something,something,something

Round to the nearest meter to get 9.8m2

Again sorry about no pics I couldn't get onto my textbook (server lost) or something like that

## Thursday, January 7, 2010

Subscribe to:
Post Comments (Atom)

Good job Rueben! Nice explaining. :)

ReplyDeleteGood job Reuben.

ReplyDelete