diket
d1=18 cm
Luas layang layang=360
ditanya d2 ..??
Llayanglayang=d1×d2 : 2
360=18×d2:2
360×2=18d2
d2=720 : 18
d2=40 cm
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diket
d1=18 cm
Luas layang layang=360
ditanya d2 ..??
Llayanglayang=d1×d2 : 2
360=18×d2:2
360×2=18d2
d2=720 : 18
d2=40 cm
360 cm2 = 1/2. 18.d2
360 cm2 = 9.d2
d2 = 360/9
= 40 cm