Given:
- Height of cylinder is 18.2 cm
- Radius of cylinder is 3 cm
![~](https://tex.z-dn.net/?f=~)
To Find?
![~](https://tex.z-dn.net/?f=~)
Solution:
Using formula:
- Surface area of cylinder = 2πr (h + r)
![~](https://tex.z-dn.net/?f=~)
Substituting values in the formula:
![\longrightarrow \sf 2 × 3.14 × 3 (18.2 + 3)](https://tex.z-dn.net/?f=%5Clongrightarrow%20%5Csf%202%20%C3%97%203.14%20%C3%97%203%20%2818.2%20%2B%203%29%20)
![\longrightarrow \sf 6.28 × 3 (21.2)](https://tex.z-dn.net/?f=%5Clongrightarrow%20%5Csf%206.28%20%C3%97%203%20%2821.2%29)
![\longrightarrow \sf 18.84 × 21.2](https://tex.z-dn.net/?f=%5Clongrightarrow%20%5Csf%2018.84%20%C3%97%2021.2)
![\longrightarrow \sf 399.4 cm²](https://tex.z-dn.net/?f=%5Clongrightarrow%20%5Csf%20399.4%20cm%C2%B2)
![~](https://tex.z-dn.net/?f=~)
- Hence, (B) 399.4 cm² is right answer.
Answer:
$50.40
Step-by-step explanation:
The garden has an area of ...
(15 ft)(12 ft) = 180 ft²
Amy wants to cover 1/4 of that with flowers, so the area devoted to flowers is ...
(1/4)(180 ft²) = 45 ft²
The cost for each square foot is $1.12, so the cost of the flowers will be ...
($1.12/ft²) × 45 ft² = $50.40 . . . . cost to cover 1/4 of the garden with flowers
Answer:
15 is the distance
Step-by-step explanation:
Answer:
A. x = 4
B. RQ = 6
C. 48 square units
Step-by-step explanation:
A. 3x - 2 = 10
3x = 12
x = 12/3
B. a^2 + b^2 = c^2
8^2 + b^2 = 10^2
64 + b^2 = 100
b = sqrt (100 - 64
b = 6
C. Area of a triangle = (b*h)/2
b = (2)(6) = 12
Area = (12 * 8)/2 = 48 square units