**(a) The figure (i) given below shows the cross-section of the concrete structure with the measurements as given. Calculate the area of cross-section.**

**(b) The figure (ii) given below shows a field with the measurements given in metres. Find the area of the field.**

**(c) Calculate the area of the pentagon ABCDE shown in fig. (iii) below, given that AX = BX = 6 cm, EY = CY = 4 cm, DE = DC = 5cm,DX = 9cmand DX is perpendicular to EC and AB.**

**Solution:**

**More solutions:**

- If the area of a semicircular region is 77 cm2.
- Given that the area of the shaded portion is 308 cm2.
- Calculate the number of complete revolutions.
- Give your answer correct to the nearest km.
- The circumference of a circle is 123.2 cm.
- Calculate the radius of the outer circle.
- Find the cost of paving the road at ₹50 per m2.
- Find the circumference of the two circles.
- Find the circumference of the circle.
- Find the area of the circle.