问题
填空题
一个正方形,它的对角线的长是10厘米,这个正方形的面积是______.
答案
三角形ABC的面积:
×10×(10÷2),1 2
=5×5,
=25(平方厘米),
正方形的面积:25×2=50(平方厘米),
答:这个正方形的面积是50平方厘米;
故答案为:50平方厘米.
一个正方形,它的对角线的长是10厘米,这个正方形的面积是______.
三角形ABC的面积:
×10×(10÷2),1 2
=5×5,
=25(平方厘米),
正方形的面积:25×2=50(平方厘米),
答:这个正方形的面积是50平方厘米;
故答案为:50平方厘米.
请用方框中单词的适当形式完成下列句子,每词只用一次。
小题2:He committed a crime, so he was put in prison as a _________. 小题3:I wrote to the manager, but there was no _________ to my complaints. 小题4:The president’s speech was so ________ that all the people present were highly motivated. 小题5:Henry decided to _______ his life to helping the poor in the world. 小题6:After a long struggle, the clerk had to accept the requirements of his boss _________. 小题7:The school offers special training courses for the __________ children who show talents in art. |