Find the length of side bc ab=6.3
And there is a angle of 71
Use CAH

The diagram for this problem is shown below. As you can see, we have a reference angle:

And an adjacent side that measures:

Therefore, by CAH we can find side bc:

for the full mark you needs to be 19.4

Step-by-step explanation:

almost you got the full mark.

my acc plz

step-by-step explanation:

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 : )