Perimeter of a Triangle

Q. Area of a square is $625m^2$. Find its perimeter.

1. $25m$
2. $50m$
3. $10m$
4. $100m$

Q. The cost of fencing a triangular plot with sides in the ratio 5:12:13 is Rs 25 per meter.if the total cost incurred to fence the plot is Rs 2250, then the area of the plot is

Q. Sudhanshu divides a circular disc of radius 7 cm in two equal parts. What is the perimeter of each semicircular shape disc? (Take π = 22/7)

Q. If the base and height of a right triangle are 3cm and 4 cm respectively, then the perimeter of the triangle is
cm

Q.

If a triangular field has sides 210 m, 180 m and 230 m long, then a wire of is required to fence the field.

1. 420 cm
2. 600 cm
3. 520 cm
4. 620 cm

Q. 3 gallons of paint cover 900 square feet. How many gallons will cover 300 square feet?

1. 3 gallons
2. 1 gallon
3. 4 gallons
4. 7 gallons

Q.

The perimeter of rectangular piece of paper is 56 cm. If the length is three times its width, what is its width?

1. 8 cm

2. 56 cm

3. 7 cm

4. 21 cm

Q. A field is in the shape of a triangle whose sides are 90m, 70m and 40m. Find the cost of levelling the ground at the rate of Rs. 2.50 per Metre square

Q. The base of triangle of a triangular field is three times its height of the cost of cultivating the field at ₹2800 per hectare is₹37800 find the base and height

Q.

If the perimeter of a semi-circle is 144 cm, then the area of the semi-circle is $1232c{m}^2$.

1. True

2. False

Q. Find the area of a triangle whose sides are in the ratio 5 : 12 : 13 and it's perimeter is 60 cm.

Q.

Question 2 (c)

Find the area of the following circle, given that $(Take\pi =\frac{22}{7})$
radius = 5 cm

Q.

If a wire of length is $762cm$ be bent to form an equilateral triangle, then find the length of the side of the triangle​

Q. If a triangular field has sides 210 m, 180 m and 230 m long, then find the length of a wire required to fence the field.

Q.
If the base of the triangle is $7units$, it's area is $17.5\text{square units}$.

1. False
2. True

Q. Perimeter of a square plot with side 5x is 100 units. Find the length of it's side.

1. 5 units
2. 15 units
3. 20 units
4. 25 units

Q. A rectangular plot is $112m$ long and $6m$ broad. It has $2m$ path all around it on the inside.Find the area of the path and the cost of constructing it at the rate of $Rs.60$ per sq m.

Q. A square and an equilateral triangle have a side in common as shown in the figure. If the side of the triangle is 1.6 cm long, find the perimeter of the figure.

1. 11.2 cm
2. 9.6 cm
3. 8 cm
4. 30.72 cm

Q. The side of an equilateral triangle is shown by $l$. Express the perimeter of the equilateral triangle using $l$.
(3 marks)

Q. A square and an equilateral triangle have a side in common as shown in the figure. If the side of the triangle is 1.6 cm long, find the perimeter of the figure.

1. 11.2 cm
2. 9.6 cm
3. 8 cm
4. 30.72 cm

Q. What is the perimeter of an isosceles triangle when the length of one of the equal sides = 5 cm and base = 8 cm?

1. $10$ cm
2. $16$ cm
3. $13$ cm
4. $18$ cm

Q. Find the perimeter of a square whose area is $196{\text{cm}}^2$.

Q. A square of area 36 ${cm}^2$ has the same perimeter as that of an equilateral triangle. What is the length of the side of the equilateral traingle?

Q. If 1 cm represent $5$ m, what would be an area of $6$ square cm, represent ?

Q. Find the perimeter of the following shape. An isosceles triangle with equal sides $8$cm each and third side of $6$cm.

Q.

The area of the square ABCD in a square cm is ___

Q.

On reaching the other end of the circle Ray realized that he had taken a wrong path and he had to follow another triangular path in order to reach the man. The lengths (in cm) of the triangular path are as shown below. The perimeter of the triangular path is:

1. 10cm

2. 15cm

3. 18cm

4. 20cm

Q. Area of a square is $144$ sq. m. Its side measures

1. $13m$
2. $14m$
3. $12m$
4. $11m$

Q.
What is the perimeter of the triangle ?

1. $66ft$
2. $56ft$
3. $46ft$
4. $54ft$

Q. The perimeter of rectangle whose sides are 4 cm and 7 cm is:

1. $28cm$
2. $36cm$
3. $22cm$
4. None.