mtk tolong ya...........

6. 2(p+l)
= 2 (3+7)
= 2(21)
= 42
a x t : 2
= 2 x 3 : 2
= 3
= 42 + 3
= 45

7. 2(p+l)
= 2(5+6)
= 2(11)
= 22
a x t : 2
= 5 x 4 : 2
= 10
= 22 + 10
= 32