Answer:
DF
Step-by-step explanation:
The side opposite the largest angle has the longest measurement
<E has the largest measurement so DF is the longest side
2 + n = 7/8n - 15
2 + n - 7/8n = 7/8n - 7/8n - 15
2 + 1/8n = - 15
2 - 2 + 1/8n = - 15 - 2
1/8n = - 17
n = - 136
Answer:

third option
Step-by-step explanation:
please mark as the brainliest answer
This procedure is known as estimating or rounding, where one compares the digit to the right is the number and sees whether or not is found within a given range, greater than 5 and can be used to increase the number in question, by a value of 1.