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March 27, 2017

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The area of a parallelogram is 420 centimeters squared and the height is 35 cm. Find the corresponding base. Be sure to show all work and label your answer

  • math - ,

    A = b * h

    420 = 35h

    420/35 = h

  • math - ,

    can you help with this one
    Find the area of the regular polygon. Round your answer to the nearest tenth.
    the individual sides are 10 the radius is 13.07

  • math - ,

    I did not answer this earlier because it makes no sense. A regular polygon is not a circle and has no radius. Do you mean a circle passing through the midpoints of the sides or through the corners or what ?

  • math - ,

    This site may help you.

    http://www.mathsisfun.com/geometry/regular-polygons.html

  • math - ,

    Find the area of the regular polygon. Round your answer to the nearest tenth.


    Question 18 (2 points)
    Find the area of the regular polygon. Round your answer to the nearest tenth.



    a 673.3 inches squared
    b 483.2 inches squared
    c 336.6 inches squared
    d 966.4 inches squared

    the 10 is alone the outside of one of the sides and there is a dot in center and a dashed line that goes to one segmement. is is 13.07

  • math - ,

    If your radius is to the corners, then
    10 = 2* 13.07 sin (180/n)
    sin (180/n) = .382555
    180/n = 22.5
    n = 8 sides
    360/8 = 45 = top angle of each isoceles triangle
    half of that has hpotenuse of 13.07 and base of 5
    area of each of those 16 triangles = (1/2) (5)(13.07 cos 22.5) = 30.2
    16*30.2 = 483

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