A gardener wants to check that the corner of a rectangular flower bed is a true right angle. He measures 30 cm along one edge and 40 cm along the other from the corner. For the corner to be exactly 90°, what must the straight distance between the two marked points be?

Question

Accepted Answer

50. For a right angle, distance^2 = 30^2 + 40^2 = 900 + 1600 = 2500, so distance = 50 cm. (This is the 3-4-5 carpenter's method scaled by 10.)

A gardener wants to check that the corner of a rectangular flower bed is a true right angle. He measures 30 cm along one edge and 40 cm along the other from the corner.
For the corner to be exactly 90°, what must the straight distance between the two marked points be?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 7 Pythagoras Property practice

A gardener wants to check that the corner of a rectangular flower bed is a true right angle. He measures 30 cm along one edge and 40 cm along the other from the corner.For the corner to be exactly 90°, what must the straight distance between the two marked points be?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 7 Pythagoras Property practice

A gardener wants to check that the corner of a rectangular flower bed is a true right angle. He measures 30 cm along one edge and 40 cm along the other from the corner.
For the corner to be exactly 90°, what must the straight distance between the two marked points be?