close
標題:
F.4 Maths
發問:
A wire of length 60 am is cut into 2 parts. Each part is then bent to from a square. If the total area of the two squares is 117cm^2, find the perimeter of each square. 更新: Ans: 24cm, 36cm
最佳解答:
其他解答:4E350C6F8B48ECA2
F.4 Maths
發問:
A wire of length 60 am is cut into 2 parts. Each part is then bent to from a square. If the total area of the two squares is 117cm^2, find the perimeter of each square. 更新: Ans: 24cm, 36cm
最佳解答:
此文章來自奇摩知識+如有不便請留言告知
A wire of length 60 am is cut into 2 parts.Each part is then bent to from a square. If the total area of the two squares is 117cm^2, find the perimeter of eachsquare. Sol 設周長分別為4a，60－4a a^2+(15－a)^2=117 a^2+(a^2－30a+225)=117 2a^2－30a+108=0 a^2－15a+54=0 (a－6)(a－9)=0 a=6 or a=9 周長分別為24cm，36cm其他解答:4E350C6F8B48ECA2
文章標籤
全站熱搜
留言列表
