Answer:
-You should already be familiar with algebra and geometry before learning trigonometry. From algebra, you should be comfortable with manipulating algebraic expressions and solving equations. From geometry, you should know about similar triangles, the Pythagorean theorem, and a few other things, but not a great deal.
-Measure the lengths of the sides of sets of similar right angled triangles and find the ratio of sides.
-Investigate the relationship between these ratios and the angle size.
-Use calculators or tables to find the sine, cosine and tangent of angles.
Step-by-step explanation:
basic knowledge i guess
9514 1404 393
Answer:
h ≈ 448.0 m
Step-by-step explanation:
The relevant trig function is the one that relates adjacent side length, opposite side length, and angle:
Tan = Opposite/Adjacent
Solving for the adjacent side length, we get ...
Adjacent = Opposite/Tan
For the two angles given, we want the value of the difference of the adjacent side lengths:
168 m = h/tan(41.2°) -h/tan(52.5°)
Then h is found by dividing by its coefficient:
h = (168 m)/(1/tan(41.2°) -1/tan(52.5°))
h ≈ 448.0 m
If you would like to know which is the correct unit of measurement to use when figuring out how many yards each child would run in the race, you can calculate this using the following steps:
80 yards * 2 + 60 yards * 2 = 160 + 120 = 280 yards
The correct measurement would be A. yards.
Answer:
<em>(7, 11)</em>
Step-by-step explanation:
y = 2x - 3 .... (1)
x + y = 18 .... (2)
(1) ----> (2)
x + 2x - 3 = 18 ⇒ <u><em>x = 7</em></u>
y = 2(7) - 3 ⇒ <u><em>y = 11</em></u>
<em>(7, 11)</em>
Answer:
d = 90°
e = 147°
f = 33°
Step-by-step explanation:
