Question

3. Find the number of matchsticks for making
9 number of
A in the pattern M

4. If I is the length of a side of an equilateral triangle, then what is its perimeter ?

5. If 1 is the length of a side of a regular pentagon, then write the formula for finding its perimeter (p).
6. Write the formula for finding the perimeter (p) of a regular octagon of side 1.
7. Write the formula for finding the total length (p) of all the edges of a cube of
side 1.​

Answer 1

Step-by-step explanation:

Q 4

If we will take l as 9

then equilateral triangle has 3 sides so for the perimeter we have to multiply 9 by 3 so 9 multipled by 3 answer is 27

So our answer perimeter is 27