What is m∠A and what is m∠B?

Step-by-step explanation:

We have cyclic quadrilateral as all vertexes are on the circle.

As per property of cyclic quadrilateral, each pair of opposite angles are supplementary.

As we know supplementary angles add up to 180°.

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