tolong dibantu kakak

6. L = 1/2 Alas x tinggi
= 1/2 x 12m x 7m
=42 m^2

7. L = 1/2 Alas x tinggi
189 dm^2 = 1/2 x alas x 21dm
Alas = (189 dm^2 x 2) :21dm
= 18 dm

8. L = 1/2 Alas x tinggi
88 cm^2 = 1/2 x alas x 11cm
Alas = (88 cm^2 x 2) :11 cm
= 16 cm

9. L = 1/2 Alas x tinggi
34 cm^2 = 1/2 x 17 cm x tinggi
Tinggi = (34 cm^2 x 2) : 17cm
= 4 cm

10. L = 1/2 Alas x tinggi
625 cm^2 = 1/2 x 50 cm x tinggi
Tinggi = (625 cm^2 x 2) : 50cm
= 25 cm