The height of the tree is 9 meters
<h3>What is angle of elevation?</h3>
This is the angle the line of sight makes with the horizontal.
Analysis:
The line of sight , the shadow length and height of tree form right angled triangle.
Let the height of tree be h
so that, tan 24 = h/20
h = 20 tan 24
h = 20(0.445) = 8.9m = 9m
In conclusion, the height of the tree is 9m.
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They are both wrong because 84*5 equals 420 times 657 equals 275940 and84 plus 573 plus 9 is 666
Since the polyhedron is about 78.5 m², the radius of the sphere is 2.5 m
Since the sum of the faces of the polyhefron equals the surface area of the sphere, we find its surface area.
<h3>What is the surface area of sphere?</h3>
The surface area of sphere is given by A = 4πr² where r = radius of sphere
<h3>Radius of the sphere</h3>
Making r subject of the formula, we have
r = √(A/4π)
Given that he sum of all the faces of the polyhedron is about 78.5 square meters, this is equal to the surface area of the sphere.
So, A = 78.5 m²
Substituting this into the equation for r, we have
r = √(A/4π)
r = √(78.5 m²/4π)
r = √(19.625 m²/π)
= √(6.246 m²)
= 2.499 m
≅ 2.5 m
So, the radius of the sphere is 2.5 m
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Answer:
Step-by-step explanation:
n-2, n, n+2
4(n-2) - n = 12 + 2(n+2)
4 n - 8 - n - 12 - 2n - 4 = 0
n - 24 = 0
n = 24
22 , 24, 26
Q’= (-6,21) R’=(-6,33) S’=(12,33) T’=(12,21) the scale factor is 3 so you multiply the coordinates by 3. It is an enlargement
