Answer:
a regular heptagon has seven lines
it has 7 symmetry regular lines
median=mode
Step-by-step explanation:
Given nth term of an AP = 7-4n
Put n = 1 then t1 = 7-4(1) = 7-4 = 3
Put n = 2 then t2 =7-4(2) = 7-8 = -1
Common difference = t2-t1 = -1-3 = -4
1.2.4
2. -8
3. -5-3
4.10+12+14
5.-10-3
6. 2+2=4
7.5+3=8
