Sagot :
Answer:
12 cm
Step-by-step explanation:
From Pythagoras Theorem
h 2 = a 2 + b 2
where
- h = Length of hypotenuse side
- a = Length of one leg
- b = Length of another leg
( 20 cm ) 2 = ( 16 cm ) 2 + b 2
b 2 = ( 20 cm )2 − (16 cm ) 2
b = √ ( 20 cm ) 2 − ( 16 cm ) 2
b = √ 400 cm 2 − 256 cm 2
b = √ 144 cm 2
b = 12 cm