So, closest area to 7857.14 is 7854 square centimetres
1/2 of a mile.
Step-by-step explanation:
He has already gone 4/8 of a mile (3/8 + 1/8) and he needs to go 8/8 of a mile. 8/8 - 4/8 = 4/8. You can simplify that to 1/2.
180 degrees - 116 degrees =64 degrees (angle PDC)
180 degrees - 64 degrees = 116 degrees (angle APD)
First rearrange as:

Taking logs of both sides, we get:


x = 6.26.