Question 1 :
Area of an isosceles triangle is $48\ cm^2$. If the altitudes corresponding to the base of the triangle is 8 cm, find the perimeter of the triangle.

Question 2 :
<image = 'https://s3.ap-south-1.amazonaws.com/homeworkcontent/NCERT_VII_Maths%2Fclass%207%20ch11%20img style='object-fit:contain'%201.PNG'> In the given figure, Find BC, if the area of the triangle ABC is $36cm^{2}$ and the height AD is 3 cm as shown in the figure above.

Question 3 :
If the circumference of a circular sheet is 154 m, find its radius. Also find the area of the sheet.

Question 4 :
A picture is painted on a cardboard 8 cm long and 5 cm wide such that there is a margin of 1.5 cm along each of its sides. Find the total area of the margin.

Question 5 :
What would you need to find, area or perimeter to answer the following : How much plastic sheet do you need to cover a rectangular swimming pool ?

Question 6 :
<image = 'https://s3.ap-south-1.amazonaws.com/homeworkcontent/NCERT_VII_Maths%2FClass%207%20ch11%20pic%203.PNG'> In the given figure, Find the area of the parallelogram .

Question 7 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c842f59b460d7261e81b.PNG' /> In the image above, dimensions of a painting are $60\ cm\times38\ cm$. Find the area of the wooden frame of width 6 cm around the painting.

Question 8 :
A circular flower garden has an area of $314 m^{2}$. A sprinkler at the centre of the garden can cover an area that has a radius of 12 m. Will the sprinkler water the entire garden? (Take π = 3.14)

Question 9 :
<image = ' https://s3.ap-south-1.amazonaws.com/homeworkcontent/NCERT_VII_Maths%2FClass%207%20ch11%20pic%205.PNG'> In the given figure, Find the area of the parallelogram .

Question 10 :
Find the area of a square park whose perimeter is 320 m.

Question 11 :
Find the area of the circle with the radius 5cm. (Use π = $ \frac{22}{7}$)

Question 12 :
<image = 'https://s3.ap-south-1.amazonaws.com/homeworkcontent/NCERT_VII_Maths%2FClass%207%20ch11%20pic%2014.PNG'> In the given figure, Which is larger? Perimeter of the smaller square or the circumference of the circle? Tell from figure above.

Question 13 :
Find the breadth of a rectangular plot of land, if its area is 440 $m^{2}$ and the length is 22 m. Also find its perimeter.

Question 14 :
Find the area of the circle with the radius 14 mm. (Use π = $ \frac{22}{7}$)

Question 15 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c851f59b460d7261e82f.PNG' /> In the image above, a photograph of Billiard/Snooker table has dimensions as $\frac{1}{10}th$ of its actual size. The portion excluding six holes each of diameter 0.5 cm needs to be polished at rate of Rs. $200\ per\ m^2$. Find the cost of polishing.

Question 16 :
Find the total cost of wooden fencing around a circular garden of diameter 28 m, if 1m of fencing costs Rs. 300.

Question 17 :
The perimeter of a rectangular sheet is 100 cm. If the length is 35 cm, find the area.

Question 18 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c848f59b460d7261e823.PNG' /> In the image above, the plan and measurement for a house are given. The house is surrounded by a path 1m wide. Find the cost of paving the path with bricks at rate of Rs.$120\ per\ m^2$.

Question 19 :
Find the height ‘x’ if the area of the parallelogram is $24 cm^{2}$ and the base is 4 cm.

Question 20 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cad7f59b460d7261eb7d.png' /> In above image, a rectangular lawn with a circular flower bed in the middle. Find the circumference of the flower bed.