Perimeter

Q. In a triangle, the sides are given as 11 cm, 12 cm and 13 cm. Find the length of the altitude corresponding to the side having 12 cm.

1. $10\text{cm}$
2. $10.25\text{cm}$
3. $10.5\text{cm}$
4. $10.75\text{cm}$

Q.

36 unit squares are joined to form a rectangle with the least perimeter. Perimeter of the rectangle is :

1. 24 units

2. 26 units

3. 12 units

4. 36 units

Q.

Using HCF and LCM answer the following question

A rectangular courtyard is 18 m 72 cm long and 13 m 20 cm broad it is to be paved with square tiles of the same size find the least possible number of such tiles?

Q.

Find the area of a quadrilateral ABCD in which AB = 6 cm, BC = 8 cm, CD = 8 cm, DA = 10 cm and AC = 10 cm. [3 MARKS]

Q.

The perimeter of a rhombus is 52 cm. If one diagonal is 24 cm, then its area is ___ $c{m}^2$.

1. 240

2. 100

3. 120

4. 140

Q.

If the sides of a triangle is 5cm, 7cm and 7cm.Find the perimeter of the triangle.

1. 19

2. $\frac{19}{2}$

3. 12

4. 6

Q.

Find length of each side of a carrom board whose perimeter is $362\text{cm}$.

Q.

The term perimeter is defined for _____ dimensional shape(s).

1. One

2. Two

3. Three

4. Both A & B

Q. Each side of an equilateral triangle is 10 cm long. The height of the triangle is
(a) $10\sqrt{3}\mathrm{cm}$
(b) $5\sqrt{3}\mathrm{cm}$
(c) $10\sqrt{2}\mathrm{cm}$
(d) 5 cm

Q.

Ted returned home. When he finished his ride, the bill came along with a map showing roughly the path taken by him and the distance covered as shown in the figure. What is the perimeter of the path taken now?

1. 9 km

2. 8 km

3. 10 km

4. Perimeter is not defined for non-polygonal shapes

Q. 3. if perimeter of triangle ABC is 72 cm. Find the perimeter of triangle DEF if vertices D, E and F are the midpoints of the given triangle.

Q.

The sides of a scalene triangle are in the ratio 3:5:7. If the perimeter of the triangle is 60 cm , then its area is :

1. 60√3 sq cm

2. 160√3 sq cm

3. 480√19 sq cm

4. 40 sq cm

Q. Question 6 (ii)
A small indoor greenhouse (herbarium) is made entirely of glass panes (including base) held together with tape. It is 30cm long, 25 cm wide and 25 cm high.
(ii) How much of tape is needed for all the 12 edges?

Q.

What is the radius (in cm) of the tyre in a car, if it covers 0.396 km in 300 rotations? (Use π = $\frac{22}{7}$)

1. 14 cm

2. 21 cm

3. 7 cm

4. 28 cm

Q. What is the dimensions of 2nd order rate constant?

Q. 13 If a diagonal of a parallelogram bisects one of the angles of the parallelogram prove that it also bisect the angles opposite to it and that the two diagonal are perpendicular to each other

Q.

Find the area of the quadrilateral shown below:

Given: Area $\left(\Delta ADC\right)=16c{m}^2$

1. 30

2. 25

3. 35

4. 36

Q.

Find the cost of fencing a rectangular park of length $40\text{m}$ and breadth $25.5\text{m}$ at the rate of $₹12$ per meter .

Q.

A roller is in the shape of ____________.

Q. There is a 40m long Tunnel. The cross section of the tunnel is a semicircle with a radius 6. Find the cost of painting it at the rate of ₹2/m^{​​​​​​2}

Q.

Which of the following is a Pythagorean triplet?

1. (15, 20, 25)

2. (3, 12, 13)

3. (24, 25, 26)

4. (36, 18, 43)

Q. AETB is a straight line such that AE=TB.If ET=30cm, LE=LT=25cm and perimeter of △ LAB is 20 cm more than perimeter of △ LET, then length of AE is

Q. The circumference of a circle is its

1. area
2. radius
3. diameter
4. perimeter

Q.

Find the area of the quadrilateral shown below:

Given: Area $\left(\Delta ADC\right)=16c{m}^2$

1. $66c{m}^2$

2. $76c{m}^2$

3. $86c{m}^2$

4. $96c{m}^2$

Q.

The sides of a triangle are 122 m, 22 m and 120 m respectively. The perimeter of the triangle is _______.

Q. Find the area of the quarilateral ABCD if AB = 5 m, BC = 5 m, CD = 6 m and AD = 6 m.

1. $3\sqrt{3}+4{\text{m}}^2$
2. $3(\sqrt{3}+4){\text{m}}^2$
3. $3(3\sqrt{3}+4){\text{m}}^2$
4. $3\sqrt{3}{\text{m}}^2$

Q.

Use the following information to answer the next question.

In the given figure, line n is the bisector of ∠P.

If PA = 17 cm and PQ = 15 cm, then what is the perimeter of quadrilateral PQAR?

1. 46 cm

2. 60 cm

3. 63 cm

4. 40 cm

Q. A polygon has 10 sides out of which 5 sides measure 5 m and the other 5 sides measure 8 m. Find the perimeter of the polygon.

Q.

A polygon having eight sides, is called:

1. Octagon

2. Pentagon

3. Hexagon

4. Heptagon

Q. Harish bought a square chess board. If the length of each side is 25 cm, find the perimeter of the board.

1. 150 cm
2. 50 cm
3. 125 cm
4. 100 cm