Question

Find the missing length of the
figure.

20 cm and 12 cm

Answer 1

16 cm

Explanation:

Since all sides of a square are equal

Side x can be gotten using pythagoras theorem

• hypothanous² = adjacent² + opposite²

• 
  `{20}^(2) = \: {12}^(2) \: + \: {x}^(2) \\ 400 \: = \: 144 \: + \: {x}^(2) \\ {x}^(2) \: = \: 400 \: - \: 144 \\ {x}^(2) \: = 256 \\ x = √(256) \\ x = 16cm`