Answer:
Average speed is 3 kilometers an hour
Answer:
9:5
Step-by-step explanation:
I think it's 9:5 sorry if I'm wrong.
Because ABCD is a rhombus, ΔABC ~ ΔADC.
The length of AC = 4 (the base of ΔABC.
The height of ΔABC = 7 - 1 = 6
The area of ΔABC is
(1/2)*4*6 = 12
Therefore the area of ABCD = 2*12 = 24
Answer: 24