suma dlugosci przekotnych deltoidu jest rowna 35 cm a stosunek ich dlugosci wynosi 3:4 . Oblicz pole tego deltoidu ?
35cm : 7 = 5cm
q1 = 5cm * 3 = 15cm
q2 = 5cm * 4 = 20cm
P = q1 * q2 : 2
P = 15cm * 20cm : 2
P = 150cm2
odp. Pole deltoidu = 150cm2.
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35cm : 7 = 5cm
q1 = 5cm * 3 = 15cm
q2 = 5cm * 4 = 20cm
P = q1 * q2 : 2
P = 15cm * 20cm : 2
P = 150cm2
odp. Pole deltoidu = 150cm2.