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Neonfox
@Neonfox
July 2022
2
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Смотри фото (номер 119)
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narinearm
66/11=6
6*3=18
18*2=36
66-36=30
30/2=15
15*18=270(площадь)
1 votes
Thanks 1
MikkyMaus
1) 66* три одиннадцатых = 18дм (сторона а)
2)b= P-(a*2) :2
b= (66-(18*2)):2= (66-36):2=30:2=15дм
b=15дм
3)S = a*b
S = 18*15 = 270дм квадратных
0 votes
Thanks 1
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Answers & Comments
6*3=18
18*2=36
66-36=30
30/2=15
15*18=270(площадь)
2)b= P-(a*2) :2
b= (66-(18*2)):2= (66-36):2=30:2=15дм
b=15дм
3)S = a*b
S = 18*15 = 270дм квадратных