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Word Prob.
Trig.Ratios
Trig.Ratios
Word Prob.Challenge
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In a 45°-45°-90° triangle, if one leg is 5cm, what is the length of the other
leg?
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5 cm
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In a 45°-45°-90° triangle, if one leg is 6cm, what is the
length of the hypotenuse?
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Find x
60°
14 mx
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X = 7√3 m
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3030°
20 cmx
Find x
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10 √3 cm
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6 m
6 m
6√2 m
x°
Find x°
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X = 45°
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12 ft.
24 ft.
x°
Find x°
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X = 60°
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The length of one diagonal of a rhombus is 12 cm. The
measure of the angle opposite that diagonal is 60°. What is
the perimeter of the rhombus?
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The perimeter of the rhombus is 48 cm.
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The angle formed by the roof of a monument measures 60°. Since this is such a steep angle, an architect places a support beam at a slant distance of 8 ft. along the roof from the corner. How tall is the support beam ? Leave
answer in radical form. B
A C
8 ft.
60º
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The support beam is 4√3 ft. tall.
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A
Mark tries to swim across a river from point A to point B. Because of the
current, he reaches point C instead. How far does he swim? Leave answer
in radical form.
45°
45°
B C75 ft.
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Mark swam 75√2 ft.
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A baseball diamond is a square with sides that are 90 ft. long.
Find the distance from first base to third base. Leave the answer in
radical form.
1st
Base
2nd
Base
3rd
Base
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The distance from 1st
base to 3rd base is
90√2 ft.
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The length of a kite string fastened to the ground is 86 m. The vertical height of the kite is 43 m. Find the angle that the string makes with the ground. Leave your answer in radical
form.
86 m43 m
x°
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The string makes a 30° angle with
the ground.
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X
Y Z3
45
Find the sin Z
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X
Y Z
1715
8
Find the cos x
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The cos x =15/17
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X
Y Z5
1312
Find the tan z
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The tan z = 12/5
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X
Y Z
9 m
35°
Find the area of triangle XYZLeave answer in radical form.
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The area of the triangle is 28.358 m²
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X
Y Z
13 ft.
55°
Find the perimeter of triangle XYZLeave answer in radical form.
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The perimeter of the triangle is approximately 31.105 ft.
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5 miles
55°
A photographer is taking pictures of two islands from a plane. When the plane is directly above Green Island, the line of site to Red Island forms a 55°angle. How high above Green Island is the plane?
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The plane is approximately 3.5 miles
above the Green Island.
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52°
All but two Egyptian pyramidshave faces that are inclined at52°
angles. An archaeologist
finds an eroding pyramid with a square basehaving a side length of 84 m. How tall was
the pyramid, if the faces are inclined at 52°?
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The height of the pyramid is approximately 53.75 m.
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Amanda and Tom are given the task of designing a ramp, so that people in wheelchairs can get into the Skiles Classroom Building. The rise has to be 5 feet and the angle of the ramp has to be 15º
. How long
does the ramp have to be?
5 ft.15°
Ramp length
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The ramp will beapproximately19.32 feet.
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A ladder is leaning against a building as shown below. The ladder reaches a height of 7√3 on the building. The ladder makes an angle of 30°
with the
wall. How long is the ladder?
7√3 ft.30°
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The ladder is 14 feet long.
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40°
A lighting technician needs to shine a spotlight onto an actor’s face. The light being directed is attached to a ceiling that is 12 feet above the
actor’s face. At an angle of 40°
,how far away from the actor should
the light be?
12 ft.
x ft.
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The actor should be approximately
14.3 feet away from the spotlight.
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A 15-ft. ladder leaning against a wall makes a 54°
angle between
the ground and the ladder. To the nearest foot, how far up the
wall does the ladder reach?
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The ladder is approximately
12.14 ft. up the side of
the building.
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John and Alex are standing on one side of the river. Alex stands directly in front of a monument they see on the other side of the river. Using a compass, Alex walks along the river in a direction perpendicular to his original line of sight until the compass reading has changed by 45°. John measures the distance Alex walked as 30 m. What is the width of the river?
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The river is 30 m wide.
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In a right triangle the two complementary angles are A and B.
What is the relationship betweenthe sine and cosine of these angles?
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The sin A = cos
B and sin B = cos
A.
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An airport is tracking the path of one of its incoming flights. If the distance to
the plane is 850 ft. and the angle of elevation from the ground is 30°, what is the
altitude of the plane?
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The plane is approximately
flying at an altitude of 490. 75 ft.