Tolong di jawab ya plis

pt dan tr= pr:2= 16:2=8
tq=15
sr=10
ts=sr^2-tr^2
= 10^2- 8^2
= 100-64
=36
ts=6
rq=tq^2 + tr^2
= 15^2 + 8^2
= 225+ 64
=289
rq= 17

keliling layang layang= 2 ( 10+17)
= 20 + 34
=54 cm