Question

4.
Questions 18-25 carry 3marks each.
18) Find the perimeter and area of the rectangle if the
perimeter of the regular pentagon is 25 cm and length of the
rectangle is 8cm
8cm
19) Following are the marks obtained by 25 students of
class VI in a class test.
3,1,5,7,5,4,6,8,9,4,7,8,5,
10,8,9,2,5 8,9,5,8,4,9,5
Prepare the table using tally marks and answer the

following questions.how many students have scored 5 or more than 5 marks
how many score less than 5​

Answer 1

Step-by-step explanation:

$18). \: perimeter \: of \: rectangle = (l + b) \\ 2(8 + x) \\ 25 = 2(8 + x) \\ 25 = 16 \times x \\ x = 25 - 16 \\ = 19cm$

try to do by ur own ok