**(a) The figure (i) given below shows a solid of uniform cross-section. Find the volume of the solid. All measurements are in cm and all angles in the figure are right angles.**

**(b) The figure (ii) given below shows the cross section of a concrete wall to be constructed. It is 2 m wide at the top, 3.5 m wide at the bottom and its**

**height is 6 m, and its length is 400 m. Calculate (i) The cross-sectional area, and (ii) volume of concrete in the wall.**

**(c) The figure (iii) given below show the cross section of a swimming pool 10 m broad, 2 m deep at one end and 3 m deep at the other end. Calculate the volume of water it will hold when full, given that its length is 40 m.**

**Solution:**

**More Solutions:**

- Find the amount of water required to fill the pool.
- Area of a triangle is 30 cm2.
- Area of a parallelogram is 48 cm2.
- If the area of a trapezium is 64 cm2.
- If the lengths of diagonals of a rhombus.
- If the length of a diagonal of a quadrilateral is 10 cm.
- Area of a rhombus is 90 cm2.
- The area of the shaded region is
- The perimeter of the shaded region is
- The area of the shaded region is equal to