Question

How many matches are needed to form figure number 9 and 17? explain​

Answer 1

Please find the complete question in the attached file.

Explanation:

For point 1:

At this point we make up triangles for the first one makes up by 3 matches figure 2 make up by 5 matches figure 3 makes up by 7 matches.

For point 2:

`4 \ \ 5\ \ 6\ \ 7\ \ 8` you can try to

`9 \ \ 11\ \ 13 \ \ 15 \ \ 17` draw to find values

For point 3:

number of matches
`= 1+2 * \ figure\ number\\\\`

For point 4:

`1+2 * 9=19 \ \ (use \ law \ of\ (iii)) \\\\1+2 * 17=35`