trig
posted by luckybee .
a circular chimney pipe with an 8inch diameter passes vertically from a heater through a metal plate in the roof. the plate has an elliptical hole that measures 8 inches along one axis. if the roof is slanted at an angel of 40 degrees with the horizontal, what is the length of the hole's longer axis?
i am getting 12.4 inches. is this correct?

8/cos40=10.44 inches check that
Respond to this Question
Similar Questions

Trigonometry
Gabe is spending two weeks on an archaeological dig. He finds a fragment of a circular plate that his leader thinks may be valuable. The arc length of the fragment is about 1/6 the circumference of the original complete plate and measures … 
Physics HELP!!! Potentials and Fields
Two identical metal plates with small holes are aligned a distance L=6.7 cm apart. They have a potential difference of 131 Volts. An electron can enter through the hole in the negative plate and exit through the hole in the positive … 
Physics
Two identical metal plates with small holes are aligned a distance L=7.2 cm apart. They have a potential difference of 141 Volts. An electron can enter through the hole in the negative plate and exit through the hole in the positive … 
physics
Two identical metal plates with small holes are aligned a distance L=7.8 cm apart. They have a potential difference of 127 Volts. An electron can enter through the hole in the negative plate and exit through the hole in the positive … 
College algebra
A circular vent pipe with a diameter of 5.5 inches is placed on a roof that has a slope of 1/4. Find an equation of the ellipse that should be cut from the roof so that the pipe will fit. Round parameters to the nearest hundredth. 
Physics
A ball and a thin plate are made from different materials and have the same initial temperature. The ball does not fit through a hole in the plate, because the diameter of the ball is slightly larger than the diameter of the hole. … 
College Algebra
A circular vent pipe with a diameter of 5.5 inches is place on a roof that has a slope of 1/4. Find an equation of the ellipse that should be cut from the roof so that the pipe will fit. roound parameters to the nearest hundreth. 
college algebra
A circular vent pipe with a diameter of 5.5 inches is place on a roof that has a slope of 1/4. Find an equation of the ellipse that should be cut from the roof so that the pipe will fit. roound parameters to the nearest hundreth. 
Math
A circular plate has a diameter of 6 inches. A pancake in the center of the plate has a radius of 2 inches. How much of the plate is not covered? 
trigo
please po help me. A chimney projects 6 feet above the roof. At a point 10 feet 8 inches down the roof from the base of the chimney,the chimney subtends an angle of 17°40' . find the angle at which the roof is inclined to the horizontal.