1. Given the formula G=RR(兩個R)分之2ab,find the value of G in each of the following cases.
a)a=-10,b=-15,r=5 b)a=-50,b=五分之二,c=12
2.In the figure,the length of each side of the triangle is a.Write down the formula for calculating the perimeter P of the triangle.
Maths homework!!
2013-09-29 3:38 am
回答 (1)
2013-09-29 4:11 am
✔ 最佳答案
1a) 121b) 負九分之五
2) P=3a
2013-09-28 20:11:56 補充：
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2013-09-29 21:53:06 補充：
1a) G=5*5/ 2*-10*-15= 12
1b) G= 12*12/ 2*-50*-0.4= -5/9
2a) P=3*a=3a
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收錄日期: 2021-04-13 19:43:54
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