Question

1.Write the number sequences for the statements given below:
a) Perimeter of squares having sides 5cm,6cm,7cm
b) Its DiagonaI c) Its Area
2)Write the sequences:
a) Sequence of whole numbers ending in zero
b) Sequence of Prime numbers.
c) Sequence got by adding 1/4 to 1/4.
d) Sequence got by multiplying the natural numbers by 6 and subtracting 5 from it.
d)Sequence of Cubes of Natural numbers.
3) Write the algebraic expression for the following:
a) Sequence of natural numbers which leaves the remainder 2 on division by 5. Find the 9th term also.
b) Sequence of natural numbers ending in 3 or 8, Find its 20th term.​

Answer 1

Answer:

Step-by-step explanation:

) Perimeter of a rectangle  =  2×(Length + Breadth)

      ∵ Length = 7 cm, Breadth = 5 cm

      ∴ Perimeter = 2 ×(7 + 5) = 2 × (12) = 24 cm

(ii) Perimeter of a rectangle  =  2 × (Length + Breadth)

        ∵ Length = 5 cm, Breadth = 4 cm        

        ∴ ​Perimeter = 2 × (5 + 4) = 2 × (9) = 18 cm

(iii) Perimeter of a rectangle  =  2 × (Length + Breadth)

         ∵ Length = 7.5 cm, Breadth = 4.5 cm

         ∴ P​erimeter = 2 × (7.5 + 4.5) = 2 × (12) = 24 cm