Answer:
the pictures are blury sorry but i would help
Step-by-step explanation:
We know that
[area of a circle]=pi*r²
r=5 in
[area of a circle]=pi*5²---------> 78.5 in²
if 2pi radians ( full circle) has an area of-------------------> 78.5 in²
1.5 radians------------------------------------------> X
X=1.5*78.5/2pi---------> 18.75 in²
the answer is
<span>the area of the sector formed by a central angle is </span>18.75 in²
No sé, prueba 2,3,5,7,11,13....
Hay muchos números primos!
Step-by-step explanation:
Split the figure into 2 parts, triangle and rectangle (I believe you know what I'm talking about)
area of triangle = 1/2 x 20 x (16-7) = 90cm^2
area of rectangle = 20 x 7 = 140cm^2
total area = 90 + 140 = 230cm^2
Topic: Mensuration
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Answer:
27 small cubes
Step-by-step explanation:
Given that,
The volume of the large cube is ![7.506\times 10^5\ mm^2](https://tex.z-dn.net/?f=7.506%5Ctimes%2010%5E5%5C%20mm%5E2)
The volume of small cube is ![2.78\times 10^4\ mm^2](https://tex.z-dn.net/?f=2.78%5Ctimes%2010%5E4%5C%20mm%5E2)
We need to find how many small cubes make up the large cube. Let there are n small cubes. So, it can be calculated as follows :
![n=\dfrac{7.506\times 10^5}{2.78\times 10^4}\\\\n=27](https://tex.z-dn.net/?f=n%3D%5Cdfrac%7B7.506%5Ctimes%2010%5E5%7D%7B2.78%5Ctimes%2010%5E4%7D%5C%5C%5C%5Cn%3D27)
So, there are 27 small cubes that make up of the large cube.