Mathematics for Class 8>Chapter 20 - Mensuration-I (Area of a Trapezium and a Polygon)>EXERCISE>Q 5

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Find the area of the following regular hexagon.

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Important Questions on Mensuration-I (Area of a Trapezium and a Polygon)

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Mathematics for Class 8>Chapter 20 - Mensuration-I (Area of a Trapezium and a Polygon)>EXERCISE>Q 1

A flooring tile has the shape of a parallelogram whose base is

24 cm

and the corresponding height is

10 cm

. How many such tiles are required to cover a floor of area

1080 m^{2} ?

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Mathematics for Class 8>Chapter 20 - Mensuration-I (Area of a Trapezium and a Polygon)>EXERCISE>Q 2

A plot is in the form of a rectangle $A B C D$ having semi-circle on $B C$ as shown in Fig. If $A B = 60 m$ and $B C = 28 m$ , If the area of the plot is $x m^{2}$ , then find the value of $x$ .

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Mathematics for Class 8>Chapter 20 - Mensuration-I (Area of a Trapezium and a Polygon)>EXERCISE>Q 3

A playground has the shape of a rectangle, with two semi-circles on its smaller sides as diameters, added to its outside. If the sides of the rectangle are

36 m

and

24.5 m

, the area of the playground is

k m^{2}

. Find the value of

k

up to one decimal place. (Take

π = 22 / 7

).

HARD

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Mathematics for Class 8>Chapter 20 - Mensuration-I (Area of a Trapezium and a Polygon)>EXERCISE>Q 4

A rectangular piece is

20 m

long and

15 m

wide. From its four corners, quadrants of radii

3.5 m

have been cut. The area of the remaining part is

k m^{2}

. Find the value of

k

.

HARD

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IMPORTANT

Mathematics for Class 8>Chapter 20 - Mensuration-I (Area of a Trapezium and a Polygon)>EXERCISE>Q 5

The inside perimeter of a running track (shown in Fig.) is $400 m$ . The length of each of the straight portion is $90 m$ and the ends are semi-circles. If track is everywhere $14 m$ wide, find the area of the track. Also, find the length of the outer running track.

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