A farmer dug a flower bed of radius 7 m at the centre of a
field. He needs to purchase fertilizer. If 1 kg of fertilizer is
required for 1 square metre area. The cost of fertilizer is
Rs10/kg. Answer the following questions.
Q12. What is the area of flower bed ?
Q13. How much fertilizer should he purchase?
Q14. Find the cost of used fertilizer.
Q15. Convert area of flower bed in to mm² and in standard form.
Q16. which area is greater 9² m2
or 2⁹ cm2
Q17. Write algebraic expression for Product of numbers y and z
subtracted from -8.
Q18. Identify terms which contain x and give the coefficient of x:
2y²-5xz
Q19.Classify into monomials, binomials or trinomials: 4y – 7z-1.
Q20. The dimensions of a cuboid are 5 cm, 3 cm and 2 cm. Draw
isometric sketches of this cuboid.