188k views
0 votes
Area = 756 cm^2
h = 18 cm
a = 39 cm
b = ?​

Area = 756 cm^2 h = 18 cm a = 39 cm b = ?​-example-1
User Ararar
by
3.0k points

1 Answer

1 vote

Answer:

given,

area= 756cm^2

h = 18cm

a = 39cm

then,

area = (a+b)h/2

756 = (39+b)18/2

756= 351+9b

756-351= 9b

405 = 9b

405/9= b

b = 45cm

User Patrick R
by
3.7k points