How do you calculate the measures of interior and exterior angles of a triangle?

n is the number of sides

each interior angle: 180(n-2)/n

exterior: 360/n

sum of exterior is always 360

sum of interior: 180(n-2)

Step-by-step explanation:

2/5

step-by-step explanation:

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl