To fine volume of rectangle, BxWxH (base times width times height)= volume
To find the volume of triangle formula 0.5 x b x a x h (0.5 times base times other base times height)= volume
Step 1. (Finding the rectangle volume) 4.4cm x 3.5cm x 4cm = 61.6cm
Step 2. (Finding the triangle volume) 0.5cm x 2.2cm x 4cm x 3.5cm = 15.4 cm
Remember I found the base line by 6.6 - 4.4 = 2.2
Step 3. (Add all together) 61.6cm + 15.4cm = 77cm^3