The shape of a garden is rectangular in the middle and semi-circular at the ends as shown in the diagram. Find the area and the perimeter of this garden. Length of rectangle is 20- (3.5+ 3.5) m.

5

(a)

An ant is moving around a few food-pieces of different shapes scattered on the floor. For which food-piece would the ant have to take a longer round? Remember, circumference of a circle can be obtained by using the expression C = 2\(\pi \) r,where r is the radius of the circle.

5

(a)

There is a pentagonal shaped park as shown. the figure. For finding its area, Jyoti and Kavita divided it in two different ways.

Find the area of this park using both ways. Can you suggest some other way of finding its area?

5

(a)

Find the area of the following trapezium.

5

(a)

Find the length of the diagonal BD when, the area of the quadrilateral is 32 cm².

5

(a)

The area of a rhombus and that of a square are equal. The side of the square is 6 cm. If one of the diagonal of the rhombus is 4 cm, then find the length of its other diagonal.

5

(a)

The edge of a cube is 2 cm. Find the total surface area of the cuboid formed by three such cubes joined edge to edge.

5

(a)

A closed cylindrical tank of radius 7 cm and height 5 m is made from a sheet of metal. If the breadth of the rectangular sheet is 10 m, then find the length of the sheet.

5

(a)

A road roller makes 250 complete revolution to move once over to level a road.
Find the area of the road levelled if the diameter of the road roller is 84 cm and length is 1 m.

5

(a)

cuboid is of dimensions 50 cm x 45 cm x 30 cm. How many small cubes with sides 5 cm can be places in the given cuboid?

5

(a)