Solve the triangle. B = 36°, a = 41, c = 17 (5 points)
2 answers:
9514 1404 393
Answer:
b = 29.0; A = 123.9°, C = 20.1°
Step-by-step explanation:
The given angle lies between the given sides, so the Law of Cosines is the appropriate relation.
b² = a² +c² -2ac·cos(B)
b² = 1681 +289 -1394cos(36°) ≈ 842.2303
b ≈ √842.2303 ≈ 29.021
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The Law of Sines can be used to find angle C:
sin(C)/c = sin(B)/b
C = arcsin(c/b·sin(B)) = arcsin(17/29.021×sin(36°))
C ≈ 20.1°
A = 180° -36° -20.1° = 123.9°
The remaining side and angles are ...
b ≈ 29.0; A ≈ 129.9°; C ≈ 20.1°
_____
<em>Additional comment</em>
By choosing to find the smaller angle C first, we avoid having to deal with the ambiguity associated with the arcsine when the angle is greater than 90°.
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Answer:
volume of attic = 1526.04 ft³
Explanation:
Volume of cone can be calculated using the following rule:
Volume =
* area of base * height
Volume = * π * radius² * height
We are given that:
π = 3.14
radius = 18/2 = 9 ft
height = 18 ft
Substitute in the equation to get the volume as follows:
Volume = * 3.14 * (9)^2 * (18) = 1526.04 ft³
Hope this helps :)
Answer:
volume of attic = 1526.04 ft³
Explanation:
Volume of cone can be calculated using the following rule:
Volume =
Volume =
We are given that:
π = 3.14
radius = 18/2 = 9 ft
height = 18 ft
Substitute in the equation to get the volume as follows:
Volume =
Hope this helps :)