If angle C is a right angle and angle A equals 50°, then prove that the measure of angle B equals 40° Which of the following would be the first step to assume in order to prove the statement above by contradiction using an indirect proof?
Angle C is a right angle.
Angle C is not a right angle.
The measure of angle A equals 50°
The measure of angie B does not equal 40°
The measure of angle B equals 40°

d

step-by-step explanation:

1. 3

2. 4

3. 1

hope this ! have a great day.

-wfz

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

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