How to find the perimeter and area of 7.7m, 2.8m, 9.7m, 4

perimeter = 26.8

              area = 49.16

Step-by-step explanation:

perimeter:

Rectangle one:

add 9.7 + 9.7 + 4 + 4 because there is 4 sides = 27.4

Rectangle 2:

2.8 + 2.8 + 3.7 +3.7 = 13

Add them together: 27.4 + 13 = 40.4

area :

rectangle one:

multiply 4 x 9.7 = 38.8

rectangle two:

multiply 3.7 x 2.8 = 10.36

add them together: 10.36 + 38.8 = 49.16

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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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