Answer:
C. c^2=a^2+b^2-2abcos(90°)
Step-by-step explanation:
This is the law of cosine.
7 because a(one side)= 1/sqrt2 * hypotenuse (7*sqrt2) THis equals 7
Answer:
x = 96
Step-by-step explanation:
Answer:
x=12
Step-by-step explanation:
The sum of the angles of a triangle is 180 degrees
5x+8x+2x =180
Combine like terms
15x = 180
Divide by 15 on each side
15x/15 =180/15
x=12
There are 5,280 feet in a mile. so 52,800 feet is 10 miles.