Question

What is the length of the longest side of a right-angled triangle if one side is 5cm and one is 7cm? to one decimal place

Plese help I need answer quickly>"

Answer 1

This is your amswer.

hope this helps you.

Answer 2

≈ 8.6 cm

Explanation:

The longest side of a right triangle is the hypotenuse h

Using Pythagoras' identity , then

h² = 5² + 7² = 25 + 49 = 74 ( take the square root of both sides )

h =
`√(74)` ≈ 8.6 cm ( to 1 dec. place )