Respuesta :
Answer:
4
Step-by-step explanation:
You would use a^2+b^2=c^2
a^2+3^2=5^2
a^2+9=25 subtract nine from both sides
a^2=16
find the square root of 16 which is 4
so the other side of the triangle is 4
Answer:
4 cm
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.
let x be the length of the 3 rd side, then
x² + 3² = 5²
x² + 9 = 25 ( subtract 9 from both sides )
x² = 16 ( take the square root of both sides )
x = [tex]\sqrt{16}[/tex] = 4
The third side is 4 cm
