Calculate the area and the height of an equilateral triangle whose perimeter is 60 cm.
A = 173.2sq.cm. h = 17.32cm
5
Find the area of a triangle whose sides are 18cm, 24cm and 30cm.
216sq.cm.
10
Find the area of an isosceles triangle with perimeter 36 cm and base 16 cm.
48 sq.cm.
15
The base of a triangular field is three times its height. If the cost of cultivating the field at Rs. 36.72 per 100 sq.cm. is Rs. 49572; find its base and height.
Base = 900 m
Height = 300 m
10
The circumference of a circular field is 308 m. Find its radius and area.
Radius = 49 m
Area = 7546 sq. cm.
10
The circumference of a given circular park is 55 m. It is surrounded by a path of uniform width 3.5 m. Find the area of the path.