Question

would these make a right triangle? explain your answer.
a. 15 feet, 36 feet, and 39 feet
b. 20 inches, 21 inches, and 29 inches
c. 8 yards, 9 yards, and 12 yards
d. 4 meters, 7 meters, and 8 meters

Answer 1

@Abhisar

Answer 2

@charliemath

Answer 3

right angled triangles obey the pythagoras theorem
a^2 = b^2 + c^2
where a is the hypotenuse ( the longest side)

Answer 4

so it 39^2 = 36^2 + 15^2
then a is right angled

Answer 5

* so if i meant to write

Answer 6

what about (b), (c), (d) @welshfella

Answer 7

the same thing applies to them

Answer 8

if they dont fit the formula then they are not right-angled

Answer 9

ok

Answer 10

39^2 = 1521
36^2 = 1296
15^2 = 225

so what do you think about (a) ?

Answer 11

add the last 2 up

Answer 12

1296+225 = ?

Answer 13

grab your calculator and chug away...