Answer:
r=11x
Step-by-step explanation:
Answer:
Step-by-step explanation:
1). By applying Pythagoras theorem in the triangle formed by two sides and the diagonal,
Length of the diagonal = 
= 
= 25√2
AC ≈ 35.56 units
2). Since, diagonal of a square is the angle bisector of interior angles of the square,
m∠CAB = 45°
By applying sine rule in ΔABC,
sin(45°) = 


AC = 25√2
AC ≈ 35.56 units
Since PQ is tangent to the circle, angle PQO is 90°.
Since the sum of angles of any triangle must be 180° we can say:
180-90-12=x thus:
x=78°
Answer: 2/5
Explanation: 10+8+12 = 30 12/30 = .4 .4 = 2/5