I need help with this problem for math plz

108

Step-by-step explanation:

I believe its 108 because the angle above it is alternate exterior angles with bmd so its 72. And we know that the angle across it must be congruent as well. Straight line adds up to 180 so 180-72 is 108

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )