Respuesta :

Answer:

b=16cm .......................

Answer:

16 cm is the base

Step-by-step explanation:

the formula is

1/2 times base times Height

b= unknown

h= 3

Base times 3 is 3b

the question is like 3b/2= 24cm2 - this is the area

when you simplify, you will get 16 cm

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