Question

out of 8 polygons a square ,a rectangle ,a parallelogram ,a right triangle ,an isosceles triangle, a Trapezium ,an equilateral triangle ,and a regular hexagon one polygon is selected at random what is the probability that the selected polygon has an 1.odd number of sides 2.is a quadrilateral

Answer 1

total no of outcomes=8
probability=no. of favourable outcomes/total no. of outcomes

1. no. of favourable outcomes=3
P(selecting a polygon of odd number of sides)=3/8

2. no. of favourable outcomes=4
P(selection a polygon which Is a quadrilateral)=4/8=1/2

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