The mark obtained by 20 students in mathematics in the examination are given below. group the data into the class interval of length 10 and construct a frequency distribution.

table with tally marks

27, 38,25,18,9,24, 48, 15,27,35

23,45,32,16,26,39,20,33,40,37

Step-by-step explanation:

class interval

Frequency

tally

Note: the fifth tally marks crosses the first 4 marks

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

step-by-step explanation: