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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Answer from: Quest
hey pal. the answer is b plz mark as brainliest
Answer from: Quest
look at the picture.
1.
ef : ab = 2 : 3
gf : cb = 2 : 3
gh : cd = 2 : 3
he : da = 2 : 3
2.
∠a ≅ ∠e
∠b ≅ ∠f
∠c ≅ ∠g
∠d ≅ ∠h
3.
use pythagorean theorem:
the length of the abcd trapezoid sides:
|ab| = 3 cm
|bc| = 10 cm
|cd| = 3(3) cm = 9 cm
|da| = 8 cm
the perimeter of abcd = 3 + 10 + 9 + 8 = 30 cm
the ratio of perimeters of the tarapezoids is equal 2 : 3.
Problem 2. find the exact value of the remaining trigonometric functions. sketch theangle 8 for each problem. (3 points each)(a) tan 0 =o is in quadrant 2