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2 years ago

How do you find the area of a regular polygon

Mathematics

1 answer:

STALIN [3.7K]2 years ago

3 0

Visit http://www.wikihow.com/Find-the-Area-of-Regular-Polygons it explains how for specific types of polygons

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Emma is standing 10 feet away from the base of a tree and tries to measure the angle of elevation to the top. She is unable to g

Vaselesa [24]

The complete question in the attached figure

step 1
find the tree height for an angle of elevation of 55°
tan 55°=opposite side angle 55°/adjacent side angle 55°
opposite side angle 55°=the tree height h1
adjacent side angle 55°=10 ft
so
tan 55°=h/10-------> h=10*tan 55°-----> h=14.28 ft

step 2
find the tree height for an angle of elevation of 75°
tan 75°=opposite side angle 75°/adjacent side angle 75°
opposite side angle 75°=the tree height h2
adjacent side angle 75°=10 ft
so
tan 75°=h2/10-------> h2=10*tan 75°-----> h2=37.32 ft

therefore

the height of the tree is within the range [14.26,37.32]

Part 1) 4.2 ft

the value is not in the interval [14.26,37.32]
therefore
it is Not Reasonable

Part 2) 14.7 ft

the value is in the interval [14.26,37.32]
therefore
it is Reasonable

Part 3) 24.4 ft

the value is in the interval [14.26,37.32]
therefore
it is Reasonable

Part 4) 33.9 ft

the value is in the interval [14.26,37.32]
therefore
it is Reasonable

Part 5) 39.1ft

the value is not in the interval [14.26,37.32]
therefore
it is Not Reasonable

Part 6) 58.7 ft

the value is not in the interval [14.26,37.32]
therefore
it is Not Reasonable

4 0

3 years ago

When truckers are on long-haul drives, their driving logs must reflect their average speed. Average speed is the total distance

KengaRu [80]

Answer:

0.500 hour

Step-by-step explanation:

Givens

Distance

Total Distance on the highway = 3hr * 60 miles / hr = 180 miles
Distance in the city = 20 miles
Total Distance = 180 + 20 = 200 miles

Time

Time on the highway = 3 hours
Time in the city = x

Formula

d /t = r

Solution

Average rate = 57.14
Total Distance / Total Time = average rate
200 / (3 + x) = 57.14 Multiply both sides by 3 + x
200 = 57.14 * (3 + x) Remove the brackets
200 = 57.14*3 + 57.14x Multiply the factors on the right
200 = 171.42 + 57.14x Subtract 171.42 from both sides.
200 - 171.42 = 171.42 - 171.42 + 57.14x So the subtraction
28.58 = 57.14x Divide by 57.14
28.57/57.14 = x
x = 0.500 hour Answer

3 0

3 years ago

Read 2 more answers

9/10 as a unit fraction

Oxana [17]

Im not to sure but I am pretty sure it's 1/10

6 0

3 years ago

2.) AN *

WINSTONCH [101]

Answer:

is this a joke i have no clue

Step-by-step explanation:

maybe A is this math or sumthing? lol SUM-thing

4 0

3 years ago

What is the area plz show steps so I Understand thank you

Bezzdna [24]

Answer:

2pi +6

Step-by-step explanation: First you can get the are of the triangle by doing (base *height)/2 this will be (3*4)/2 whcih is 6

Area of the half circle. To get the area of the circle u do radius^2*pi. this will be 2^2*pi in this example. so 4pi. because its half u have to to divide it by 2, so 4pi/2 is 2pi.

Now 2pi + 6 is the anwser

3 0

3 years ago