Answer:
similar triangles can be used to find the height of a building.
Step-by-step explanation:
Remark
You are dealing with a right angle triangle. You can use one of Sin(x) Cos(x) or Tan(x). Since the Hypotenuse is involved and since you are given the adjacent side, Cos(71) is what you will need.
Solution
H = BC
Cos(x) = adjactent / hypotenuse
Cos(71) = 6.3 / H Multiply both sides by H
H * Cos(71) = 6.3 Divide by Cos(71)
H = 6.3 / cos(71) Cos(71) = 0.32557
H = 6.3 / 0.32557 Divide
H = BC = 19.351 Answer
Answer: 153.56
Step-by-step explanation:
Hi, to answer this question we have to apply the next formulas:
Volume of a cone: 1/3 π r² h
Where r is the radius and h is the height (unknown)
Diameter = r x 2
8 = 2r
8/2 =r
r = 4
Before calculating the volume we have to apply the Pythagorean Theorem to find h. (where the slant is the hypotenuse and h and r are the sides of the triangle)
10 ² = h² + 4²
Solving for h
100 = h² + 16
100-16 = h²
84= h²
√84 =h
9.16= h
Back on the volume formula:
V= 1/3 π r² h
V =1/3 π 4² (9.16) =153.56
Answer:
The value of pi is equal to 3.14
Answer:
I honestly was having the worst time trying to solve this sorry :(, for real idk if any of these are right
i got 2 answers; 1st: ≈0.5 mph
the 2nd; 2 mph
Step-by-step explanation:
Speed = 
2/3 miles = 3520 feet
1/3 hours = 20 minutes
------Make a proportion-----
cross multiply------
3520 * 60 = 211200
5280 * 20 = 105600
Divide 
---(this is where i got confused cuz 2 doesn't make any sense)--
If you flip them, 
which makes more sense
hope i helped :(
