Dave travels 300 miles in 1 hour and 40 minutes. What is Dave's rate of travel (speed) in piles per hour?
1 answer:
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The base of a cone is a circle.
The area of a circle is
.
Thus, the area of the base of a cone.
The derivation of the formula for the area of a circle involves a bit of calculus, but if you'd like, I can walk you through it.
The area of a circle is
Thus, the area of the base of a cone
The derivation of the formula for the area of a circle involves a bit of calculus, but if you'd like, I can walk you through it.
Answer:
<h2><em>46.4°</em></h2>Step-by-step explanation:
Find the diagrammatic representation in the attachment given.
We can see that the diagram is a right angled triangle. To get the angle of elevation, we will use one of the trigonometry identity SOH, CAH, TOA.
Given the adjacent of the triangle to be 2miles (observation spot from the point of launch)and the opposite (side facing the elevation angle) as 2.1miles (the height), we will use TOA.
tan∅ = opposite/adjacent
tan∅ = 2.1/2
tan∅ = 1.05
∅ = tan⁻¹1.05
∅ = 46.4°
<em>Hence the angle of elevation from Kim to the space shuttle, which is at a height of 2.1 miles is approximately 46.4°</em>
