A right triangle has two sides with a length of 3 and 4. What is the length of the hypotenuse (c)?

Question

And were can i find out the mathematical equation for this

Answer 1

In a right angled triangle where c is the longest side and C is the right angle, Pythagoras gives:-
c ² = a ² + b ²
c ² = 3 ² + 4 ²
c ² = 25
c = 5
Hypotenuse = 5

Answer 2

You should probably use the Pythagorean Theorem...
The square of the length of they hypotenuse of a right triangle is equal to the sum of the squares of the lengths of the other two sides.

In mathematics it's written
c² = a² + b²

In this case you're given
c² = 3² + 4²
c² = 9 + 16
c² = 25
c=5

But there are a few "Pythagorean Triples" that you will see a lot of. These are triangle with sides the lengths of which are integers. 3-4-5 is one of the most common. 5-12-13 is another one I've seen with growing frequency.

Note, there are a lot of these triangles...3-4-5, 6-8-10, 9-12-15... these are alll 3/4/5 triangles.

You don't have to sit down and memorize a bunch of these triples... I only know 5 of 'em... but 3-4-5 is VERY common.

Answer 3

The answer is 5.
A² + B² = C² (C = Hypotenuse)

(3 X 3 = 9) + (4 x 4 = 16)
9 + 16 = 25
√25 = 5

Answer 4

You need to use the pythagorean theorem. a squared plus b squared equals c squared. The legs of your triangle, 3 and 4, are a and b. The hypotenuse is c. Your answer is 5.

Answer 5

As per Pythagores theorem
hypotnuse^2=sum of the squares of the other two sides
so h^2= (3)^2 +(4)^2
or h^2=9+16=25
or h=5 ans

Answer 6

a^2 + b^2 = c^2
9 + 16 = 25
c = 5

Answer 7

(3)²+(4)²= c²

9+14=c²
25=c²
√25=c
5= c

Answer 8

5

a^2 + b^2 = c^2
9 + 16 = 25
c = 5

Answer 9

the Geek is right. The answer is 5 according to Pythagorean's Theorem.

Answer 10

The shortest side squared +the second shortest side squared is the hypoternuse after square rooting it to get its length. Pythagoras Therory