Answer:
about 86 cm
Step-by-step explanation:
My understanding of the geometry is shown in the attached figure.
Since the angle of incidence is equal to the angle of reflection, the angle APP₂ will be 22.5°, and the vertical distance from the pocket P to the ball position B is ...
(PA +AB')sin(22.5°) = 220sin(22.5°) ≈ 84.19 . . . . cm
The horizontal distance PB is
(PA -AB)cos(22.5°) = 20cos(22.5°) ≈ 18.48 . . . . . cm
The distance PB is given by the distance formula ...
PB = √(84.19² +18.48²) ≈ 86.19 . . . . cm
The ball was initially about 86 cm from the corner pocket.
Answer:
a) 10.5cm
b) 1520cm³ (3 s.f.)
c) 1270cm² (3 s.f.)
Step-by-step explanation:
Please see the attached picture for full solution.
Step-by-step explanation:
step 1. this is a trapezoid. the area A = (b1 + b2)h/2 where b1 is the bottom base and b2 is the top base (per se), and h is the height. this formula is the definition of the area of a trapezoid.
step 2. A = (b1 + b2)h/2 = (22 + 9)(5)/2
step 3. A = 31(5)/2 = 155/2 = 77.5in^2.
Answer:
8 in., 17., and 4 in is possible of a right triangle
Hope it helps. Good luck with your grades and Aunt.
Have a nice day!!
Here you go hope it helps
