Answer:
r = 10 cm
Step-by-step explanation:
r² = 8² + 6²
r² = 64 + 36 = 100
r = 10 cm
Answer:
answer is A. cosine
Step-by-step explanation:
6.875 inches, you divide the fraction to get a decimal
A vertical pole(AB) 6 feet long casts a shadow(CB) 55 inches long as shown in the attached image. Since the angle of elevation of sun is
. We hav to find the value of
.
Firstly, we will change the dimensions of pole(in feet) to the dimension of shadow( in inches) . So, that the dimensions of pole and shadow are same.
Since, 1 feet = 12 inches.
6 feet =
inches.
Now, let us consider the triangle ABC in the attached image,
We have to find
![tan\Theta =\frac{Perpendicular}{base}](https://tex.z-dn.net/?f=%20tan%5CTheta%20%3D%5Cfrac%7BPerpendicular%7D%7Bbase%7D%20)
= ![\frac{AB}{BC}= \frac{72}{55}](https://tex.z-dn.net/?f=%20%5Cfrac%7BAB%7D%7BBC%7D%3D%20%5Cfrac%7B72%7D%7B55%7D%20)
= 1.309
![= 52.6^{\circ} = 53^{\circ}](https://tex.z-dn.net/?f=%20%3D%2052.6%5E%7B%5Ccirc%7D%20%3D%2053%5E%7B%5Ccirc%7D%20%20)