Answer:
1) 18cm^2
2) 40cm^2
3) 24 cm^2
4) 5m
5) 10m
Step-by-step explanation:
Area of trapezoid formula = ((base 1 + base 2)/2) x height
1) Area = ((4+5)/2) x 4
area = (9/2)(4)
area = 4.5 x 4
area = 18cm^2
2) Area = ((10+6)/2)(5)
Area = (16/2)(5)
area = 8x5
area = 40cm^2
3) Area = ((12+4)/2)(3)
Area = (16/2)(3)
Area = 8 x 3
Area = 24cm^2
4) Height = Area / ((base 1 + base 2)/2)
Height = 45 / ((8+10)/2)
Height = 45 / (18/2)
Height = (45/9)
Height = 5m
5) Height = Area / ((base 1 + base 2)/2)
Height = 45 / ((6+3)/2)
Height = 45 / (9/2)
Height = 45/4.5
Height = 10m
