Question

Please help me thank youu x

Answer 1

Answer: angle b= 42 angle c= 138°

Step-by-step explanation: Angle b= 42°, vertical angles. Vertical angles are congruent (≅) meaning approximately equal to. The symbol is used for congruence, commonly as an equals symbol. So, angle b is congruent to 42°.

Angle c= 138°, 180-42= 138 (linear pair). A linear pair between angles "c" and "42°" exists. To find out the missing angle, you subtract the known angle from 180. Ex. 180-42.

Answer 2

B is 42.

C is 138.

Explanation:

angle b and angle c are equal. So b is 42 degrees.

B + c = 42 + 42 = 84

All 4 angles are 360 degrees.

angle C and the blank angle above it are the same measure.

so 84 + 2C = 360

Solve for C.

2c = 276

c = 138

you can check your results by adding up all the Angles and seeing if they equal 360.

42 + 42 + 138 + 138 = 360.