Answer:
31.4 feet or 957.072 centimetre-square
Step-by-step explanation:
We can convert the feet to centimetre or work with it that way
Formula for circumference
C=2TTr^2
C=2*3.14*5
C=31.4 feet
Convert to centimetres
Each feet equal 30.48cm
31.4 feet will be
31.4*30.48= 957.072 cm^2
Answer:
4588 [in²].
Step-by-step explanation:
1) the given octagon can be imagined as 8 triangles (see the attachment). In order to calculate the required area of the octagon, it is enough to calculate the area of one triangle then increase it 8 times:
2) area of one triangle is:
37*31/2 [in²].
3) the required area of the octagon is:
31*37*8/2=31*37*4=4588 [in²].
Answer:
16
Step-by-step explanation:
OK, this might sound a bit confusing but I'll give it my best shot.
1. We know all the sides of one triangle, the smaller one. We know that the largest side of the large triangle is 36, and the largest side of our small triangle is 9. This means that they are related.
2. If we take 36 and divide by 9, it gives us 4. This number tells us how much bigger the large triangle is compared to the smaller triangle.
3. Now, we can take the number we just got, 4 and use it to find the other sides of the large triangle.
4. We need the smallest side of the large triangle. We can get this by taking the smallest side of the small triangle, and multiplying it by 4, since we know that the big triangle is 4 times larger than the small one.
5. 4 is the smallest side of the small triangle. We can multiply by 4, which is 16, and your answer!
Answer:
0≥6y
Step-by-step explanation:
y-5(y+1)≥2y-5
y-5y-5≥2y-5
-4y≥2y
0≥6y
487 is almost 500, so we will approximate 487 as 500.
310 is just over 300, so we will approximate 310 as 300.
300+500=800 (estimation)
310+487=797 (actual)
