aracelic0104owjlqb
aracelic0104owjlqb
15-12-2017
Mathematics
contestada
please help meeeeeee
Respuesta :
Edufirst
Edufirst
15-12-2017
Data:
b1 = 5 km
b2 = 7 km
h = 3 km
Formula: area = (1/2) h * (b1 + b2)
Solution: just replace the values of b1, b2 and h in the formula and make the calculations:
area = (1/2) 3km ( 5km + 7km) = (1/2) 3 km * 12 km = 18 km^2
Answer: option B. 18
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