## EXERCISE 24 C

**1.Find the area of the following graphical figures**

**(i) fig**

**(ii)**

**(iii)**

**2. Find the area of a rectangle whose**

**(i) Length = 18 cm and breadth = 13 cm**

**(ii) Length = 12 cm and breadth = 7.5 cm**

**(iii) Length $=3\dfrac{1}{4}~m$ and breadth $=1\dfrac{1}{2}~m$**

**(iv) Length = 5 m 60 cm and breadth = 3 m 40 cm**

**3. What is the area of a square photo frame of side**

**(i) 8 cm**

**(ii) 10 cm**

**(iii) 15 cm**

**4. What happens to the area of a rectangle when**

**(i) its length is doubled, the breadth remaining the same ?**

**(ii) its breadth is doubled, the length remaining the same ?**

**(iii) its length and breadth are both doubled ?**

**5. What happens to the area of a square when**

**(i) its side is doubled ?**

**(ii) its side is tripled ?**

**(iii) its side is halved ?**

**6. Find the perimeter of the square whose area is 2500 m ^{2} ?**

**7. Find the area , in hectare , of a field whose length is 240 m and breadth is 110 m .**

**8. The area of a square of side 16 cm is the same as that of a rectangle of length 64 cm . What is the breadth of the rectangle ?**

**9. The area of a rectangular park is 456 m ^{2} and its length is 24 m . Find the breadth of the park and the cost of fencing it at the rate of 8.50 rupees per metre . **

**10. A playground measures 300 m by 170 m . Find the cost of playing grass on this at the rate of 80 rupees per hectare .**