Question

The perimeter of an isosceles triangle is 42 cm and the ratio of the equal sides to its base is 3:4. The area of the triangle is

​

Answer 1

Answer:

Step-by-step explanation:

Let the numbers be 3x, 4x and 4x

3x+4x+4x=42cm

12x+42

x=42/12=3.5

3x=10.5

4x=14

A=½[√(a² − b² ⁄4) × b]

Answer 2

Answer:

refer the pic

the ans is in the pic

hope it helps you