Answer:
what is your question here can you be more specific?
Step-by-step explanation:
Answer:
b and d
Step-by-step explanation:
b and d from the picture
same angle of 25 between sides with 1:2 side to base ratio
They say that 2 inches on the map equals 25 miles in real life.
That means that 1 inch on the map equals how many miles in real life?
... [time for you to think] ...
That's 12.5 miles. (simply 25 / 2 = 12.5).
So one inch on the map is equal to 12.5 miles in real life.
Starting from this....
So 1 inch on the map is equal to 12.5 miles in real life.
So 2 inches on the map is equal to 25 miles in real life. (2x12.5)
So 3 inches on the map is equal to 37.5 miles in real life. (3x12.5)
So 4 inches on the map is equal to 50 miles in real life. (4x12.5)
So 19.2 inches on the map is equal to <....> miles in real life (19.2 x 12.5).
For you to fill in the <...> using the steps I gave you.
You have to do some trigonometric transformations :
sin ( 11π/2 ) = sin ( 8π/2 + 3π/2 ) = sin ( 4π + 3π / 2 ) = sin ( 3π / 2 ) =
= sin 270° = -1
