MEDIUM
7th ICSE
IMPORTANT
Earn 100

The difference between the circumference and the diameter of circle is 75 cm. Find the area of the circle.

Important Questions on Perimeter and Area

MEDIUM
7th ICSE
IMPORTANT
Maths Hub (ICSE)>Chapter 16 - Perimeter and Area>Check Point>Q 8
A wire is bent in the form of an equilateral triangle whose perimeter is 132 cm. The same wire is re-bent to form a circle. Find the area enclosed by the circle.
MEDIUM
7th ICSE
IMPORTANT
Maths Hub (ICSE)>Chapter 16 - Perimeter and Area>Check Point>Q 9
A path 5 m wide runs outside a circular path whose radius is 18 m. Find the area of the path.
HARD
7th ICSE
IMPORTANT
Maths Hub (ICSE)>Chapter 16 - Perimeter and Area>Check Point>Q 10
The inner circumference of a circular track is 440 m, and the track is 14 m wide. Calculate the cost of levelling the track at 25 paise per sq.m. Also, find the cost of fencing the outer boundary of the track at ₹5 per m.
HARD
7th ICSE
IMPORTANT
Maths Hub (ICSE)>Chapter 16 - Perimeter and Area>Check Point>Q 11
A track is in the form of a ring whose inner circumference is 352 m and outer circumference is 396 m. Find the area and width of the park.
HARD
7th ICSE
IMPORTANT
Maths Hub (ICSE)>Chapter 16 - Perimeter and Area>Check Point>Q 12
A circular park 42 m in diameter, has a path 3.5 m wide running around it on the outside. Find the cost of gravelling the path at ₹4 per sq.m.
HARD
7th ICSE
IMPORTANT
Maths Hub (ICSE)>Chapter 16 - Perimeter and Area>Check Point>Q 13
Find the cost of polishing a circular table top of diameter 1.6 m, if the rate of polishing is ₹15 per sq.m. [ Use π=3.14]
MEDIUM
7th ICSE
IMPORTANT
Maths Hub (ICSE)>Chapter 16 - Perimeter and Area>Check Point>Q 14

From a circular card sheet of radius 14 cm, two circles of radius 3.5 cm and a rectangle of length 3 cm and breadth 1 cm are removed (shown in fig). Find the area of the remaining sheet.

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MEDIUM
7th ICSE
IMPORTANT
Maths Hub (ICSE)>Chapter 16 - Perimeter and Area>Check Point>Q 15
A circle of radius 2cm is cut out from a square piece of an aluminium sheet of side 6cm. What is the area of the left-over aluminium sheet? (Take π=3.14)