discuss how a builder could use Pythagoras to measure right angles in a building
One way is known as the "carpenter's trick."
To find out if two walls are at right angles to each other, the carpenter marks a point on one of the walls 3 units from where the surfaces join. On the other wall, at the same height, he marks a point 4 units from where the walls join.Then, he measures the distance between the points. If this = 5 units, the walls are at right angles.
This "works" brcause of the Pythagorean "Triple," 3 - 4 - 5
One way is known as the "carpenter's trick."
To find out if two walls are at right angles to each other, the carpenter marks a point on one of the walls 3 units from where the surfaces join. On the other wall, at the same height, he marks a point 4 units from where the walls join.Then, he measures the distance between the points. If this = 5 units, the walls are at right angles.
This "works" brcause of the Pythagorean "Triple," 3 - 4 - 5