Odpowiedź :
10.
a) a = 3 cm h = 6 cm
P = 1/2 * 3 * 6
P = 3 * 3
P = 9 cm2
b) a = 10 mm h = 14 mm
P = 1/2 * 10 * 14
P = 5 * 14
P = 70 mm2
c) a = 9 dm h = 8 dm
P = 1/2 * 9 * 8
P = 9 * 4
P = 36 dm2
d) a = 12 m h = 6 m
P = 1/2 * 12 * 6
P = 6 * 6
P = 36 m2
a) a = 3 cm h = 6 cm
P = 1/2 * 3 * 6
P = 3 * 3
P = 9 cm2
b) a = 10 mm h = 14 mm
P = 1/2 * 10 * 14
P = 5 * 14
P = 70 mm2
c) a = 9 dm h = 8 dm
P = 1/2 * 9 * 8
P = 9 * 4
P = 36 dm2
d) a = 12 m h = 6 m
P = 1/2 * 12 * 6
P = 6 * 6
P = 36 m2
Odpowiedź:
Wzór = a*h/2
A) 3*6 = 18 18 / 2 = 9 cm²
B) 10*14 = 140 140 / 2 = 70mm²
C) 9*8=72 72/2 = 36dm²
D) 12*6=72 72/2 = 36m²
Szczegółowe wyjaśnienie:
*mnożenie /dzielenie