Answer:
Step-by-step explanation:
We can write the following proportion:
We know that the original perimeter of the Pentagon is 921 feet. So, substitute 921 for "old perimeter."
We are going to use a scale of 3 cm = 307 feet. Since the 307 feet corresponds to the original perimeter, we are going to substitute 307 for "old scale factor" and 3 for "new scale factor."
This gives us:
So, to find our scaled perimeter, we just need to find x.
Cross multiply:
Divide both sides by 307:
In other words, the total perimeter of Sawyer's drawing will be 9cm.
And we're done!
Answer: x = 8
Each angle is 120 degrees
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Explanation:
The top and bottom angles are vertical angles, so they are congruent to each other. This means they are the same measure.
14x+8 = 4x+88
14x+8-8 = 4x+88-8 ... subtract 8 from both sides
14x = 4x+80
14x-4x = 4x+80-4x ... subtract 4x from both sides
10x = 80
10x/10 = 80/10 ... divide both sides by 10
x = 8
Once you know x, you can figure out each angle
top angle = 4x+88 = 4*8+88 = 120 degrees
botom angle = 14x+8 = 14*8+8 = 120 degrees
Both angles are 120 degrees so this helps confirm we have the proper x value
Answer:
I think it's 21
Step-by-step explanation:
I'm not surebut I hope this helps.
Answer:
B.) b+79
Step-by-step explanation:
For 3. he answer is a
for 4 the answer is two