SOLUTION: a. The measure of angle CBD is 10 less than twice the measure of angle ABD. If D is in the interior of angle ABC and the measure of angle ABC is 80, what is the measure of angle CB
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Question 151781: a. The measure of angle CBD is 10 less than twice the measure of angle ABD. If D is in the interior of angle ABC and the measure of angle ABC is 80, what is the measure of angle CBD? Answer by jojo14344(1513) (Show Source):
You can put this solution on YOUR website! We take the 1st condition: a. The measure of angle CBD is 10 less than twice the measure of angle ABD. -----------------------> eqn 1
Since is in the interior of angle , there forms an angle right? Therefore, angle , see the correlation there?
It's better you draw it to follow the interpretation better.
Since , then ---------------------> eqn 2
.
Equating the 2 eqns:
Go back eqn 2: -----------------> FINAL ANSWER
IN doubt? go back eqn 1: cool,
Thank you,
Jojo
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