Question

find the area of triangle of its side are 4x:5x:6x: and its primeter is 30 cm.​

Answer 1

Answer:

15x=30

X=2

area is √15×7×5×3

= 39.76

Answer 2

Answer:

15x=30,x=2

4x=8

5x=10

6x:=12. sides: 8,10,12 Cms

Semi perimetr=30/2=15

Area =vs (s-a)(s-b)(s-c)

=v15 (15-8) ( 15-10) (15-12)

= v15x7x5x2=v15x7x5x2 =v1050

= 32.4cm2