Answer:
question (1)
height of building = 308 ft
question (2)
cos 67.11 = 7/18
Explanation:
question (1)
Taking a look at the triangle, we can see that it is a right-angled triangle. This means that we can apply the special trigonometric identities.
The one we will use here is:
tan Θ = opposite / adjacent
where:
Θ = 72
the opposite side is the height of the building
the adjacent side = 100 ft
Substitute to get the height as follows:
tan(72) = height / 100
height = tan(72)*100 = 307.76 which is approximately 308 ft
question (2):
We are given that:
cos Θ = 7/18
therefore:
Θ = cos^-1(7/18)
Θ = 67.114
approximating to the nearest tenth, we would find that:
Θ = 67.11°
Hope this helps :)
2j +2h =30. That is the equation
2(8) + 2h = 30
16+ 2h =30
Subtract 16 from both sides
2h = 14
H=7
Answer:The answer is 360 cubic meter.
Step-by-step explanation:
9514 1404 393
Answer:
B. 6
Step-by-step explanation:
The longest chord of a circle is the diameter, twice the length of the radius.
2(3 cm) = 6 cm
The other angle would be 110 degrees. This is because a supplementary angle equals 180 degrees. So, 180-70=110<span />
