Answer:
3.143
Step-by-step explanation:
Since you're rounded it to the third decimal, you look at the fourth one. And since the fourth one is 8, ur going round 2, which is the third decimal to 3.
Answer:
A = 27π
P =
Step-by-step explanation:
Well if it follows the same proportions as a square then the dotted line is 6 cm.
<u> Triangle </u>
So the area of a triangle is b*h / 2
b = 6
h = 6
6*6 = 36
36 / 2 = 18
A = 18cm^2
So to find the missing side or c we do 6^2 + 6^2 = c^2,
36 + 36 = c^2
72 = c^2
≅<u>8</u>
6 + 6 + 8
= 20cm
<u> Half circle </u>
Now the area of a semicircle is,
pi r^2 / 2
So if the diameter is 6 then the radius is 3.
So we do 3*3 = 9
9 * pi = 9π^2
Perimeter: 6π
____________________________________________________________
<em>Thus,</em>
<em>the area is 27π and the perimeter 26π. </em>
<em />
<em>Hope this helps :)</em>
Answer:
a^2 + b^2 = c^2
36^2 + 48^2 = 3600
Square root of 3600 = 60
So the diagonal measurement is 60"
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>Ratios given:</u>
- 15/10 = 3:2 this is different from the others
-
8 to 12 = 8:12 = 2:3
-
2/3 = 2:3
-
6:9 = 2:3
If the required rate is gallons per minute, then its obvious from the question, that the rate of filling the pool is 10 gallons per minute, and its obviously a constant number.
But for the rate to be in gallons per hour, then
1 minute corresponds to 10 gallons
so
1 hour corresponds to 10x60 = 600 gallons
hence
rate (gallons per hour) = 120,000/600 = 200 gallons per hour.
which is again a constant number.
