Question

Pleasee hellpp pleaseee help​

Answer 1

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 = $\sqrt{25}$ = 5 cm

The perimeter is the sum of the 3 sides, thus

perimeter = 3 + 4 + 5 = 12 cm