Question

The perimeter of an equilateral triangle is thrice of the ____________.

Q2. ________ is defined as the surface covered by any shape.

Q3. Complete the following
1 km2 = _______ m2

Q4. What is the formula to calculate the perimeter of a rectangle?

Q5. What is the formula to calculate the area of a square?

Q6. Find the perimeter of a triangle with sides of length 6 cm, 3 cm and 4 cm

Q7.What is the area of a square of side?
a. 10 m b. 12 mm

Q8.Find the perimeter of each of the following:
a. Rectangle of dimensions 7cm and 9 cm
b. Pentagon of side 11 cm

Q9. The base of an isosceles triangle measures 20 cm and the length of each of its two equal sides is 25 cm. Find its perimeter.

Q10.The area of rectangle having dimensions 25 cm by 9 cm is

Q11.The side length of a square field is 80 m. Find the total length of wire needed to fence the field.​

Answer 1

Answer:

1. 3a
2. I don't know but maybe it's area
3. 1000000
4. 2(length+breadth)
5. a^2
6. 6.perimeter of triangle∆ABC=sum of all sides

AB+BC+CA

6+3+4=13CM

7.a=100

b=144