Question

Tolong ya guys 19 20 22 23 makasih jgn lupa pake zarkasih

Answer 1

20) p= 5+l
k= 82cm

k= 2 (p+l)
82= 2 (5+l+l)
82= 2 (5+2l)
82= 10 +4l
72=4l
l=72:4
l=18cm

p=5+l
=5+18
=23cm

Luas= p x l
= 23 x 18
= 414cm (B)