Angle a and angle b are supplementary angles. what must be true about the angles? a. the sum of the angles is 90 degree b. the sum of the angles is 180 degree c. the angles were formed by two intersecting lines and are on opposite sides. d. the angles share a common side and vertex.

Solution:

As per the problem we have

Angle A and angle B are supplementary angles.

As we know that , two angles are supplementary angles if their sum is 180.

So when these two angles will be together on a plane will make a straight line.

Hence , when Angle A and angle B are supplementary angles.

Then

The sum of the angles is 180 degree.

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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