It is a regular pentagon which means all five sides are the same length. This also means that the angle between any two adjacent vertices is the same. So to find the angle between two adjacent vertices we take 360° and divide it by 5 which equals 72°. But A and D are not adjacent to each other, they have E in the middle (it also has B and C in the middle on the other side, but that's the bigger angle, and we usually label angles through their smaller angle. ex: a 30° angle is 30° if you look at it on the smaller angle (∠ ← here), but if you look at the bigger side of the angle (here →∠) it is 330°, yet we still call it a 30° angle). So, between A and D are two equal angles A to E, and E to D. So we multiply 72° by 2 which equals 144<span>°.
So the answer is 144</span><span>°.</span>
Our distance is x
We know each week she rides a total distance greater than 10 km and less than or equal to 30 km
We can write this like the following:
x > 10
x <= 30
It also tells us the distance is always an even number and a multiple of 3. Ask your self, what are some numbers between 10 and 30 and is a multiple of 3.
12, 18, 24 and 30
So the possible distances are 12, 18, 24, 30
Notice each number is an even number and you can divide the number by 3 evenly so they are numbers with 3 being a multiple.
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Answer:</h2><h2>
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In this context:
<h2>
Explanation:</h2>
Hello! Remember you have to write complete questions in order to get good and exact answers. Here you haven't provided any diagram, so I'll assume ΔSTU and ΔDEF are similar. Two triangles are similar if and only if<em> their corresponding angles are congruent and their corresponding sides are in proportion. </em>
So:
We also know:
Suppose we know:
Then, by eq2:
By substituting ∠S and ∠T into eq4:
Finally:
Answer: upstream: 5.2= (x-y) 5
Downstream: 5.2= (x+y) 2.5
Step-by-step explanation:
