Question

The perimeter of an isocelous triangle is 42cm and its base is (3/2) times each of the equals sides. Find the length each of a triangale,area of the triangle and height of the triangle

Answer 1

perimeter=sum of all sides
42 cm=x + 2x3/2
$42cm \: = x + 2x \frac{3}{2} \\ 42cm \: = 3x \times \frac{3}{2} \\ 42 \times \frac{2}{3} = 3x \\ 28 = 3x \\ \frac{28}{3} = x$