Question

x 40 x 16 m2 - (10 x 8) m2
= 320 m2 - 80 m2, i.e. 240 m2
PRACTICE EXERCISE 11.1
1. Find the ratio of the area of a circle to the area of a square whose side equals to the radius
2. The area of a rectangular field is 48 sq m and one of its sides is 6 m. How long will a lady ta
field diagonally at the rate of 20 m per minute?
3. The shape of a garden is rectangular in the middle and semicircular at the ends as shown
Find the area and the perimeter of this garden.
7 m
20 m
Fig. 11.5
(Hint: Length of the rectangle is 20 - (3.5 +3.5) metres, Radius of each semicircle is 3.
4. The circumference of the front wheel of a cart is 3 m long and that of the back wheel is 4
the distance travelled by the cart, when the front wheel makes five more revolutions that
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Answer 1

Answer:

ask from your techer. this type of long ones