The perimeter of an isosceles triangle is equal to 14 cm and the lateral side is to the base in the ratio 5:4. The area of the triangle is:
Options:
A . .
B . .
C . .
D . .
Answer: Option D
Lateral side = (5x) cm and base =(4x) cm 5x+5x+4x = 14 or x = 1 So, the sides are 5 cm, 5 cm and 4 cm S = 1/2 (5+5+4) cm = 7 cm (s - a) = 2 cm and (s - b) = 2 cm and (s - c) = 3 cm
Submit Comment/FeedBack