问几道英语奥数题1.We know the area of A is four times of B.If the area of B is 6平方厘米 and the perimeter of B is 16cm.the perimeter of A is _____.2.There is a triangle,and it is an isosceles triangle (等腰三角形).We know a and b ar

Question

问几道英语奥数题
1.We know the area of A is four times of B.If the area of B is 6平方厘米 and the perimeter of B is 16cm.the perimeter of A is _____.
2.There is a triangle,and it is an isosceles triangle (等腰三角形).We know a and b are 5cm,while c=8cm.Then the area of the triangle is _____.(h的平方+（c/2）的平方=b的平方）
第一题没图

Answer 1

1.请问这道题有图吗?（不能确定A和B的形状）
2.∵h的平方+（c/2）的平方=b的平方
∴h的平方=5的平方-（8/2）的平方
∴h=3
∴三角形的面积为8×3÷2=12（平方厘米）