1. Two sides of a triangle are 8cm and 11cm and its perimeter is 32cm.The third side is :
(a) 4cm
(b) 13cm
(c) 14cm
(d) 16cm

2. The base of a triangle is 12cm and height is 8cm .Its area is:
(a) 24cm²
(b) 96cm²
(c) 48cm²
(d) none

3. The sides of a triangular plot are in the ratio 3:5:7 and its perimeter is 300m . The sides of a triangle are.
(a) 60m,100m,40m
(b) 50m,80m,60m
(c) 45m,75m,95m
(d) none

4. What will be the area of quadrilateral ABCD if AB =3cm, BC=4cm, CD=4cm, DA=5cm and AC=5cm.
(a) 12.5cm
(b) 15.2cm
(c) 18.2cm
(d)19.2cm

5. Area of an equilateral triangle with side ‘a’ is _______________.