Answer:
uuhh sorry
Step-by-step explanation:
We know that the equation for Diameter is r^2(2*r), thus:
12/2=6
Your radius is 6.
A=
r^2 (pi*r^2)
Thus, your area is 113.1
Answer:
12 by 12
Step-by-step explanation:
The area of a square is , where is side length of the square. Therefore, we have:
Since all side lengths of a square are equal, the dimensions are 12 by 12.
<h3>
Answer:</h3>
- The Surface area of milk can is 43.96cm²
<h3>Solution:</h3>
The milk can is in the shape of a cylinder.
The surface area of cylinder is defined as the sum of curved surface and the two circular bases of the cylinder;
ㅤㅤㅤ➙ (curved surface ) + 2(base area )
ㅤㅤㅤ➙ 2πrh + 2πr²
ㅤㅤㅤ➙ 2πr( h + r )
<em>Here, in this question we have;</em>
- radius ( r ) = 2/2 = 1 cm
<u>Therefore, </u><u>Surface</u><u> </u><u>Area</u><u> </u><u>(</u><u> </u><u>S.A </u><u>)</u><u> :</u>
➝ S.A = 2πr( r + h )
➝ S.A = 2 × π × 1 ( 1 + 6 )
➝ S.A = 2π ( 7 )
➝ S.A = 2 × 3.14 × 7
➝ S.A = 14 × 3.14
➝ S.A = 43.96cm²
1/5 of 70 is 14
70-14 is 56
1/2 of 56 is 28
He has $28 left