NurmaZahara1971
1. luas belah ketupat = 1/2 x d1 x d2 a. 1/2 x 6cm x 2cm = 6 cm b. 1/2 x 4 cm x 4cm = 8 cm c.1/2 x 8 cm x 2 cm = 8 cm 2. luas belah ketupat = 1/2 x d1 x d2 a. 1/2 x 4 cm x 16 cm = 32 cm b. 1/2 x 1,5 dm x 30 cm = 1/2 x 15 cm x 30 cm = 75 cm
B 15 dikali 30= 450
a. 1/2 x 6cm x 2cm
= 6 cm
b. 1/2 x 4 cm x 4cm
= 8 cm
c.1/2 x 8 cm x 2 cm
= 8 cm
2. luas belah ketupat = 1/2 x d1 x d2
a. 1/2 x 4 cm x 16 cm
= 32 cm
b. 1/2 x 1,5 dm x 30 cm
= 1/2 x 15 cm x 30 cm
= 75 cm