Answer:
339.3 cubic inches
Step-by-step explanation:
SA (cyl) = 2πr² + 2πrh
SA = 2(3²)π + 2(3)(15)π
SA = 18π + 90π
SA = 108π
SA ≈ 339.3 in³
Answer:
Ya gotta share
Step-by-step explanation:
Answer:
17 cm
Step-by-step explanation:
Since this is a right triangle, we can use the Pythagorean theorem
a^2 +b^2 = c^2 where a and b are the legs and c is the hypotenuse
8^2 + 15^2 =c^2
64+225 = c^2
289 = c^2
Take the square root of each side
sqrt(289) = sqrt(c^2)
17 = c
Answer:
<em>Both equal sides have a length of 29 cm.</em>
<em>The third inequal side is 9 cm.</em>
Step-by-step explanation:
<u>System of Equations</u>
With the data provided in the problem, we can form a system of two equations with two unknowns.
Let's call x to each equal side of the isosceles triangle and y to the other side. One condition states that each equal side is 2 cm more than three times the other side. It can be written as:

We also know the perimeter of the triangle is 67 cm. Since we have to equal sides to x:


Let's put together both equations:


To solve the system, we can use the x from the first equation and replace it into the second equation:

Operating:

Joining like terms:

Solving for y:

The third inequal side is 9 cm. Now find the value of x.

Both equal sides have a length of 29 cm.