守望先锋 ping:跪求!!!!

A storm dropped(降) heavy rains on central and southern parts of China.
The radio says that (1) the Xiangjiang River in Hunan,floods caused by terrible (2) in the past weeks killed 25 people and 13 others were missing.
The Chinese Government warned some parts in Yunnan and the city of Chongqing of possible heavy rains over the (3) few days. In Changsha water levels rose(水位上升) to 38 metres early average Monday morning,about 3 metres (4) the average line.
In Guangdong,at (5) 21 people have been killed,while three were (6) hurt and seven went missing (7) heavy floods hit northern parts by Saturday.
The cities of Shaoguan,Meizhou and Heyuan (8) hardest hit and many people were left homeless(无家可归的).
About 620 million yuan has been lost in the floods.Guangdong has sent something (9) to Meizhou,Heyuan and Shaoguan to help the people who had lost homes build their (10) again.
谁能帮我做下,要有译文.

证明等腰三角形腰上的高与底边的夹角等于顶角的一半.
谁帮做下?
拜托.先把第2题做出