Math help please?

Question

A right triangle is a triangle with one angle measuring 90°. In a right triangle, the lengths of the sides are related by the Pythagorean Theorem, c2= a2 + b2 ( all of the two's are squared) where c is the length of the hypotenuse (the side opposite the 90° angle). Find the length of the hypotenuse when the other two sides’ measurements are 3 feet and 4 feet.

Answer 1

3^2 + 4^2= c^2
9 + 16= c^2
25= c^2
sq.root 25= c
5= c
hypotenuse= 5feet

Answer 2

Just about any construction worker could answer this question.

3^2 + 4^2 = c^2
9 + 16 = c^2
25 = c^2
5 = c

3-4-5 (or some multiple, like 6-8-10) is very popular for laying out a foundation or other situations where you need a square corner. Measure 3 feet from the corner along the fixed string. Measure 4 feet from the corner along a string that you can move side to side. Hold one end of a tape measure at the 3 foot mark on the fixed string. Move the opposite string until the four foot mark matches up with with the 5 foot mark on the tape measure. The guy way down at the other end of the movable string (the guy that's moving the string) pounds in the stake fixing the movable string. Now you've got a square corner and can use the strings as a guide when laying out the foundation.

Answer 3

3 squared is 9
4 squared is 16

9+16=25
square root of 25 is 5 so side c is 5 feet

Answer 4

3 squared =
4 squared =

add those two together - and take the square root for the hypotenuse

you will be amazed what the answer is - and

will never forget it !

Answer 5

5 ft

c= sqrt (3^2 + 5^2)
c = 5