ALL yourr doing is just adding 8 and 36
y= 4\frac{1}{2} or y= 4.5
Answer:
wigggle
Step-by-step explanation:
a girl 2.2m tall observes that the angle of elevation of the top of a building 16m away from her is 45° find the height of the buildinga girl 2.2m tall observes that the angle of elevation of the top of a building 16m away from her is 45° find the height of the buildinga girl 2.2m tall observes that the angle of elevation of the top of a building 16m away from her is 45° find the height of the buildinga girl 2.2m tall observes that the angle of elevation of the top of a building 16m away from her is 45° find the height of the buildinga girl 2.2m tall observes that the angle of elevation of the top of a building 16m away from her is 45° find the height of the buildinga girl 2.2m tall observes that the angle of elevation of the top of a building 16m away from her is 45° find the height of the buildinga girl 2.2m tall observes that the angle of elevation of the top of a building 16m away from her is 45° find the height of the buildinga girl 2.2m tall observes that the angle of elevation of the top of a building 16m away from her is 45° find the height of the buildinga girl 2.2m tall observes that the angle of elevation of the top of a building 16m away from her is 45° find the height of the buildinga girl 2.2m tall observes that the angle of elevation of the top of a building 16m away from her is 45° find the height of the buildinga girl 2.2m tall observes that the angle of elevation of the top of a building 16m away from her is 45° find the height of the buildinga girl 2.2m tall observes that the angle of elevation of the top of a building 16m away from her is 45° find the height of the buildinga girl 2.2m tall observes that the angle of elevation of the top of a building 16m away from her is 45° find the height of the building
Answer:
The angle is approximately 
.
Step-by-step explanation:
We should start with a diagram (like the one attached). Notice the length of the tower and the length of the shadow are the legs of a right triangle, and the angle of elevation is an acute angle of that triangle.
Since we are given the opposite and adjacent sides to the angle, we will use the tangent function:
In this case, the opposite side is the height of the tower, 166 ft. The adjacent side is the length of the shadow, 167 ft. So, we have:
To get the angle, we need to use inverse tangent:
The angle is approximated when rounded to the nearest degree.
The point (x,y) = (-1.5) is in the second quadrant. So the best way is to draw a point in the xy coordinate plane and a line segment at the origin (0,0).
Now draw a line from (-1.5) to the x-axis. What you should have is a right triangle with the following coordinates: (0,0); (-1.5); (-1.0).
If you look at a right triangle, it has a small leg on the x-axis. Its length is 1 unit. The larger leg is 5 units long. The length of the hypotenuse can be calculated using the Pythagorean theorem. c2 = a2 + b2, the length of hypotenuse c is √26.
In summary,
- length of short leg = 1 unit
- length of long leg = 5 units
- length of hypotenuse = √26 units
Let x be the length of the leg on the x axis (short leg). Let
y be the length of the other leg (long leg).
Let r be the length of the hypotenuse.
x = -1
y = 5
r = √26
Now we can calculate the trigonometric identity:
sin θ = y/r
cos θ = x/r
tan θ = y/x
cot θ = x/y
seconds θ = r/x
csc θ = r/y
Learn more about Pythagorean theorem brainly.com/question/343682
8449
Answer:
3.38 cm
Step-by-step explanation:
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