3 copies of 1/6 is 3/6 and when simplified it equals 1/2<span />
Just add a similar triangle from the opposite side
Then what happens
- Hypotenuse of this triangle becomes common and diagonal of the rectangle.
Now
Area

- Area of triangle=20/2=10units^2
Answer:

Volume = 3.14 × 5² ×6 ÷ 3
volume = 157 cm³ B