Question

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

Answer 1

Answer:

Please find the complete question in the attached file.

Step-by-step 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$= 1+2 \times \ figure\ number$

For point 4:

$1+2 \times 9=19 \ \ (use \ law \ of\ (iii)) \\\\1+2 \times 17=35$