1. The angle is of 70° then it's congruent angles is a)30" b)110" c)70" D]0"
2.The circumference of a circle of radius r is
a)rt b)2nr char? d)1/4rt ?
3. The area of a square plot is 1600 sq. m.The side of the plot is
a)40m b)80m c)120m d)160m
4.which of the following is the mean of first five natural number's
a) b) c)4 d)S
S. The range of the marks 85.76,89,39.54,65 is
a)50 b)89 c)39 d 4​