Question

pls answer math class 8 understanding quadrilaterals ​

Answer 1

a). Triangle = It has no diagonal.

b). with 17 sides of polygon = 119 diagonals

c). with 35 sides of polygon = 560 diagonals

d). with 16 sides of polygon = 104 diagonals

e). with 22 sides of polygon = 209 diagonals