Tolong bantu jawab 5 s.d. 10 beserta jalannya

5. L = 1/2 x gd1 x gd2
= 1/2 x (12cm + 12cm) x (5cm + 5cm)
=1/2 x 24cm x 10cm
= 12cm x 10cm
= 120 cm2

6.L = 1/2 x gd1 x gd2
= 1/2 x (8cm + 8cm) x (15cm + 6cm)
= 1/2 x 16cm x 21cm
= 8cm x 21 cm
=168 cm2

7. Gd1 = 1/2 x L : Gd2
= 1/2 x 2500 m2 : 20cm
= 25000000 cm2 : 10cm
=2500000cm 2

8. T= L :( 1/2 x (Sa + Sb ) )
= 3.060 m2 : (1/2 x( 70m + 100m)
=3.060 m2 : (1/2 x 170 m)
= 3.060 m2 : 85m
=36 m


9. L= 22/7 x 21m x 21m
= 66m x 21m
= 1386 m2

Sori yang no 18 ga sempet