Dell INSPIRON 6000 CENTRINO 1.7GHZ,512mb,40GB,DVDRW,XP (086216118098) PC Notebook "formula triangle" Questions

...equipment then you need to know the source VOLTAGE, AMPS used bt the equipment and do a current calculation. Google on the "electrical power triangle" or POWER FORMULA and you can see the

if you know about area formulas of class 8 and 9,please solve my question?there is a circle.in the between of the circle,there is a rectangle of dimension 4cm and 3cm.if the rectangle will cut out ...