Use the formula r=log^10L, where r is the measurement of the Richter scale and l is the intensity, to find the Richter scale mea
1 answer:
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Use the geometric mean for right triangles here. Like this 
. Cross multiply to get 
, and 
. That simplifies down to 
. Pull out the 9 as a perfect square of 3 and you're left with 
, first choice above.
Answer:
<em>The height of the monument is 124.8 ft</em>
Step-by-step explanation:
<u>Right Triangles</u>
The ratios of the sides of a right triangle are called trigonometric ratios. The tangent ratio is defined as:
The figure attached below shows the different distances involved in the problem. We heed to find the value of h, the height from Daniel's eyes. Then we'll add it to the 6 ft where his eyes are located from the ground.
Taking the angle of 68° as a reference:
Solving for h:
Calculating:
h = 118.8 ft
The height of the monument is 118.8 ft + 6 ft = 124.8 ft
