A hiker is standing on the ground looking up to the top of a tree with an angle of elevation of °= 55 The situation represented where the base of the triangle is the eye level of the hiker and the vertical side is the tree. The distance from the hiker's eye to the top of the tree is 54 feet. Based on the information given, what is the distance a, in feet from the hiker
to the base of the tree? Do not include the units in your answer. Round to the nearest whole number.

From the hiker to the base of the tree it's 48.2

by definition, an arc subtended by a central angle of some given measure has the same measure. so .

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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