Question

Find the length of the missing leg.

Answer 1

x =
`√(48)`

Explanation:

Using Pythagoras' identity in the right triangle

x² + 4² = 8²

x² + 16 = 64 ( subtract 16 from both sides )

x² = 48 ( take the square root of both sides )

x =
`√(48)`

Answer 2

Explanation:

using formula

a^2+b^2=c^2

x^2+4^2=8^2

x^2+16=64

x^2=64-16

x=
`√(48)` cm