Perhaps it's not been here, but some of you may have heard my rants lately at the education system's broad strokes in mathematics and geometry and algebra and trigonometry, while basic useful things such as compound interest, gas milegage calculation, checkbook-balancing, the perils of credit cards and solid measuring skills are not emphasized enough, leaving "graduates" with a vague sense of how to function in this paperwork-and-pecuniary planet.
It's what makes payday loan stores so successful, after all.
But, today, while my husband was playing with some online IQ test, I was magically able to recall the formula for calculating the hypotenuse of a right triangle, given the length of the other two sides.
Still, I don't think I've ever measured anything in real life that way. Who needs to know the height of trees based on their shadows?