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Inessa [10]
3 years ago
7

SOMEONE PLS HELP MEEEEEEE

Mathematics
2 answers:
Anettt [7]3 years ago
5 0

Answer:

area=(a+b)*h/2

63cm^3=(6+12)*x/2

63 cm^2=18x/2

63*2=18x

126/18=x

7=x

therefore x=7 cm

Step-by-step explanation:

Ulleksa [173]3 years ago
4 0
X=7 as shown in the steps above
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