Question

The perimeter of a triangle is 22cm. If one of the sides is 9 cm . Find the other side if the area of the triangle is 20.976cm²

Answer 1

4.661

Answer 2

Soln 
L×L=area of a rectangle
9cm×£=20•976
9cm£=20•976cmtouch and hold a clip to pin it. unpinned clips will be deleted after 1 hour. 

Answer 3

A=1/2×9×h=20.976
9/2×9/2h=20.976×9/2
H=4.7cm

Answer 4

A=1/2×9×h=20.976
9/2×9/2h=20.976×9/2
H=4.7cm

Answer 5

4.7

Answer 6

The other side=8.3cm

Answer 7

4.661

Answer 8

1/2×y×9=20.976cm                      1/2y×9=20.976cm                        9/2y=20.976cm                              multiply each side with the receprical of 9/2.                         2/9×9/2=20.976×2/9.                        =4.661cm