The diagram shows isosceles trapezoid LMNP. It also shows how line segment NO was drawn to form parallelogram LMNO. Isosceles trapezoid L M N P is shown. A line is drawn from point N to point O on side L P. Sides M N and L O are parallel and sides M L and N O are parallel. Angle L is 50 degrees.

What is the measure of angle ONP?

50°
65°
80°
130°

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step-by-step explanation:

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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86

step-by-step explanation:

find the area of the triangle then multiply by 2 then add the area of the parollelegram multiplied by 2