Answer:
w = 10 cm
Step-by-step explanation:
The area (A) of the triangle is calculated as
A =
base × height
here base = 6 and height = 8, thus
A = 0.5 × 6 × 8 = 3 × 8 = 24 cm²
The area of the rectangle = 5 × 24 = 120 cm²
area of rectangle = lw ( l is length, w is width )
Here l = 12, thus
120 = 12w ( divide both sides by 12 )
w = 10 cm
The formula for volume is V=LWH
So in this example we have 10.4*5*8
So 8*5=40
40*10.4=416
So the volume is 416 cubic mm
Hope that helped