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geom/trig

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A 40 ft ladder leans against a wall so the base of the ladder is 11 feet away from the base of the wall . What angle does the ladder make with the wall?

  • geom/trig - ,

    i believe that you set it up like cos(x)= a/h
    a= 11 feet
    h= 40 feet
    then you take the inverse cos of 11/40

  • geom/trig - ,

    The base of a right rectanglar prism is 12 cm by 8 cm. The height is 5 cm. Find its surface area.

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