Question

Triangle ABC is translated 5 units to the right and 4 units up to create triangle A' B'C'.

2.
B'
26
A
80
B
5
C
What is the measure of B?​

Answer 1

74°

Explanation:

From the attached figure, translation only affects the length of the sides of the triangle :

From the figure :

We are given ;

A = 80° ; C = 26° ; B =?

Sum of angles in a triangle :

A + B + C = 180°

80° + B + 26° = 180°

106° + B = 180°

B = 180 - 106

B = 74°