Respuesta :

Answer:

19

Step-by-step explanation:

1/2*(5+x)*4=48

fluffycats27
The formula for finding the area of a trapezium is:
Area= 1/2 x (a+b) x h
So the formula will work oppositely
4 cm is the height while 5 and the other 5 is sides.. sorry i can’t find the formula now

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