Question

1.The sides of a triangular plot are in the ratio of 1:3 2 and its perimeter is 30cm. Find its area. 

2. Find the area of a triangle, two sides of which are 8 cm and 11 cm and the perimeter is 32 cm. 

3. Find the area of a triangular garden, whose sides are 40m, 90m and 70m.

answer step by step correctly ​

Answer 1

Answer:

let the ratio of sides be 1x:3x:2x

perimeter=30 cm

but all sides of triangle is =30

2x+3x+1x=30

6x=30

x=5