Perimeter of Irregular Figures

Q.

If the area of an equilateral triangle is $25\sqrt{3}c{m}^2$, then its perimeter = ____ cm.

1. 10

2. 30

3. 45

4. 60

Q.

Find the perimeter of the following figure (all measurements are in mm):

1. 128.82 mm

2. 26.72 cm

3. 27.72 mm

4. 27.72 cm

Q.
The given shape is a closed, irregular figure.

1. False
2. True

Q.
The given shape is a closed, irregular figure.

1. False
2. True

Q. An isosceles triangle has a measure of 'p' units for its equal sides and 'q' units for its unequal side. What is its perimeter?

1. 2(p + q) units
2. 2p + q units
3. 2q + p units
4. 2(qp) units

Q.

The perimeter of an equilateral triangle is 60cm. Then its side is ___ cm .

1. 20

2. 60

3. 30

4. 40

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

1. 65
2. 75
3. 85
4. 95

Q. Arrange the given regular polygons having side 'a' units in descending order of their perimeter.

1. Hexagon
2. Pentagon
3. Square
4. Triangle