Question

Is the answer 24 or 80 please I don't know explain with steps nad explanations pls

Answer 1

Hello :D

If you are trying to work out area you have to do:

8cm x 4cm = 24cm

If you are trying to work out the perimeter then you have to work out the distance around the shape

Answer 2

Answer:

≈ 8.9

Step-by-step explanation:

Assuming you are requiring the length of the unknown side

let the side ( hypotenuse ) be x

Using Pythagoras' identity

The square on the hypotenuse ie equal to the sum of the squares on the other 2 sides, that is

x² = 4² + 8² = 16 + 64 = 80 ( take square root of both sides )

x = $\sqrt{80}$ ≈ 8.9 ( to 1 dec. place )