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An illustration shows a cone that rests flat on the circular base. The visible circumference of the base and sides are in solid lines. The circumference of the base at the back that is not visible is indicated by a dashed line. Parts are labeled. A large point is marked in the center of the base. A solid line passes through this point and extends from one edge of the base to the other to indicate the diameter of the base. The line is labeled d equals 10 centimeters. The right side of the cone extending from where the diameter meets the edge of the base up to the point of the cone shows a slant height of 13 centimeters. A dotted line extends from the interior of the vertex of the cone down to the point marked in the center of the base. A right angle is indicated where the dotted height line meets the diameter line in the center of the base.
Find the length of the height of the cone.
11 answers
The slant height of 13 centimeters, the radius (half the diameter) of 10 centimeters, and the height of the cone form a right triangle.
Let's label the height of the cone as h.
Using the Pythagorean theorem, we have:
(10 cm)^2 + h^2 = (13 cm)^2
Simplifying the equation, we get:
100 cm^2 + h^2 = 169 cm^2
Subtracting 100 cm^2 from both sides, we have:
h^2 = 169 cm^2 - 100 cm^2
h^2 = 69 cm^2
Taking the square root of both sides, we find:
h = √69 cm
Therefore, the length of the height of the cone is approximately 8.31 centimeters.
Using the Pythagorean theorem, we have:
(10 cm)^2 + h^2 = (13 cm)^2
Simplifying the equation, we get:
100 cm^2 + h^2 = 169 cm^2
Subtracting 100 cm^2 from both sides, we have:
h^2 = 69 cm^2
Taking the square root of both sides, we find:
h = √(69) cm
Therefore, the length of the height of the cone is approximately 8.31 centimeters.
Given that the diameter of the base is 10 centimeters and the slant height is 13 centimeters, we can use the Pythagorean theorem to find the height of the cone.
Let's label the height of the cone as h.
The radius of the base can be found by dividing the diameter by 2:
radius = 10 cm / 2 = 5 cm
Now, we can form a right triangle with the radius, height, and slant height. Using the Pythagorean theorem, we have:
radius^2 + height^2 = slant height^2
Plugging in the given values, we get:
5 cm^2 + h^2 = 13 cm^2
25 cm^2 + h^2 = 169 cm^2
h^2 = 169 cm^2 - 25 cm^2
h^2 = 144 cm^2
Taking the square root of both sides, we find:
h = √(144) cm
Therefore, the length of the height of the cone is 12 centimeters.
Given l=30 in. , w=20 in. , h=18 in. , and x=36.1 in. , find the length of d . Round the answer to the nearest tenth.
The Pythagorean theorem states that for a right triangle, the sum of the squares of the two legs (h and w) is equal to the square of the hypotenuse (d).
In this case, we have:
h^2 + w^2 = d^2
Plugging in the given values, we get:
(18 in)^2 + (20 in)^2 = d^2
324 in^2 + 400 in^2 = d^2
724 in^2 = d^2
To find d, we take the square root of both sides:
d = √(724 in^2)
d ≈ 26.9 in
Therefore, the length of d is approximately 26.9 inches when rounded to the nearest tenth.
Using the Pythagorean theorem in the right triangle formed by h, w, and d, we have:
h^2 + w^2 = d^2
Substituting the given values, we get:
(18 in)^2 + (20 in)^2 = d^2
324 in^2 + 400 in^2 = d^2
724 in^2 = d^2
We can solve for d by taking the square root of both sides:
d = √(724 in^2)
d ≈ 26.94 in
Therefore, the length of d is approximately 26.94 inches when rounded to the nearest tenth.