A few days ago
Anonymous

In need for help on these math questions that i have?

Please help i dont understand.. thanks so much if someone could help me..

1. Ray BD bisects angle ABC. Find the value of x if the measure of angle ABD is represented by 7x-2 and the measure of angle DBC is represented by 5x+10.

A)6

B) 12

C) 40

D) 80

2. Find the measure of angle ABD if the measure of angle ABC=57, the measure of angle ABD is represented by 2x-1 and the measure of angle DBC is represented by 5x+2.

A) 7

B) 8

C) 15

D) 42

3. What is the measure of angle DBC if the measure of angle ABD is represented by 2x, the measure of angle DBC is represented by 5x and the measure of angle ABC is 91 degrees?

A)7

B) 13

C) 26

D) 65

4. Find the measure of angle ABD if the measure of angle DBC is 16 degrees and the measure of angle ABC is 89 degrees.

A) 44.5 degrees

B)105 degrees

C) 52.5 degrees

D) 73 degrees

Top 1 Answers
A few days ago
sfroggy5

Favorite Answer

1. Ray BD bisects angle ABC. Find the value of x if the measure of angle ABD is represented by 7x-2 and the measure of angle DBC is represented by 5x+10.

bisect means both angles are equal so

7x – 2 = 5x + 10

2x = 12

x = 6

7(6) – 2 = 42 – 2 = 40 (c)

For the rest of them a picture would be helpful. It is hard to picture what all the angles look like and their relationship to each other.

Just a hint they usually equal 90(right angle), 180 (straight line), or each other.

0