Question

using herons formula find the are of the triangle with sides
1) 10cm, 20vm and 30cm
2) sides are in the ratio 1:2:3, perimeter given = 180cm​

Answer 1

Answer:

1) √30 (30-10)(30-30)(30-20)

√30×20×10

10√7

2) let sides be x +2x+3x

x+2x+3x=180

6x=180

x=180/6

=30

as x = 30

the sides are 30, 60,90