英语翻译
问题描述：
英语翻译
1、The number of diagonals that can be drawn in a regular polygon with twenty sides（icosagon）is ( )
2、The greatest number of Mondays,which can occur in 45 consecutive days,is ( )
3、You have 3 weights:1kg,3kg,9kg as well as an equal arm balance,as shown.How many different weight objects can you weigh with these three?
4、The least natural number whose digits sum equals 100,is ( )
答
1、The number of diagonals that can be drawn in a regular polygon with twenty sides (icosagon)is ( )翻译：正20边形的对角线有几条?用组合计算,20选2 = 190,然后减去20条边,190 - 20 = 1702、The greatest num...