Answer:
5 cm and 12 cm
Step-by-step explanation:
Calculate the unknown side h using Pythagoras' identity.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
h² = 3² + 4² = 9 + 16 = 25 ( take the square root of both sides )
h = [tex]\sqrt{25}[/tex] = 5 cm
The perimeter is the sum of the 3 sides, thus
perimeter = 3 + 4 + 5 = 12 cm
