Surface area of the cylinder is 251.2 cm² and volume is 141.3 cm³.
More volume is that of the cylinder when height is tripled to 15 inches and radius is 3 cm.
Step-by-step explanation:
- Step 1: Given radius = 3 cm and height = 5 cm, find surface area and volume of the cylinder.
Surface area = 2πrh + 2πr² = 2πr(h + r)
= 2π × 5 (3 + 5) = 2 × 3.14 × 40 = 251.2 cm²
Volume = πr²h = 3.14 × 3² × 5 = 141.3 cm³
- Step 2: Find new volume when radius = 6 cm and height = 5 cm
Volume = 3.14 × 6² × 5 = 565.2 cm³
- Step 3: Find new volume when height = 15 in and radius = 3 cm
15 inches = 15 × 2.54 cm = 38.1 cm (∵ 1 in = 2.54 cm)
⇒ Volume = 3.14 × 3² × 38.1 = 1076.7 cm³
∴ More volume can be attained if the height is tripled to 15 inches while radius is still at 3 cm.
This is so easy okay just make sure if it’s true or not
This question is about Pythagorean theorem, a square + b square = c square
Where a and b represents either leg of the triangle (width or height), and c represents the hypotenuse (the diagonal)
Let height = h
For the question above, the equation will be
36 square + h square = 45 square
Subtract 36 square from both sides
36 square - 36 square + h square= 45 square - 36 square
h square = 2025 - 1296
h square = 729
Find the square root of both sides
Square root of h square = square root of 729
h = 27
The height of the television is 27
Answer:
14*-1
Step-by-step explanation:
