The formula to calculate the lateral area of a cone is given by
where
LA=10.5pi in2
r=2.1 in
l=? slant height
substitute given values
When triangle DEF is reflected across the dotted line into triangle D'E'F', which describes the position of F'?
1 answer:
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Answer:
33.85 units^2
Step-by-step explanation:
you must first draw the triangle on the plane using the equations (see
attached file), you will have a right angle triangle with a height of 192 and a base of 6.
then you calculate the angle with the tangent function = 88.21
Then you use the small triangle to find the value of a (see attached file).
Finally, you propose an equation for X to find one of the sides of the triangle, once you have x squared it, and you already have the area,
i attached procedure
