Leigon
Answered

Discover a world of knowledge at Westonci.ca, where experts and enthusiasts come together to answer your questions. Join our Q&A platform to get precise answers from experts in diverse fields and enhance your understanding. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

Please explain this.

Please Explain This class=

Sagot :

Angles EBA and DBC are congruent. The three angles EBA, EBD, and DBC are together supplementary, so their measures sum to 180°. This means

x + (4x + 11°) + x = 180°

6x + 11° = 180°

6x = 169°

x = (169/6)°

Then the measure of angle D is

2x + 8° = 2 (169/6)° + 8° = (193/3)°

The interior angles of any triangle sum to 180°, so if y is the measure of angle C, we have

(169/6)° + (193/3)° + y = 180°

y = (175/2)° = 87.5°