Lesson 29
Presentation
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Easy
Standards-aligned
Susan Budde
Used 8+ times
FREE Resource
7 Slides • 5 Questions
1
L29
Use trigonometric ratios to solve problems.
Read the problem. What are you trying to figure out?
Draw a diagram. Draw a right triangle and label it with information.
Determine which trig ratio will solve the problem.
2
Draw
the right triangle.
Label for the problem.
3
Read the problem. What are you trying to figure out?
Draw a diagram. Draw a right triangle and label it with information.
Determine which trig ratio will solve the problem.
A wooden beam 6 meters long leans against a wall and makes an angle of 71o with the ground. How high up the wall does the beam reach? Give your answer to the nearest meter.
4
Read the problem. What are you trying to figure out?
Draw a diagram. Draw a right triangle and label it with information.
Determine which trig ratio will solve the problem.
Mark is flying a kite and realizes 300 feet of string are out.
The angle of the string with the ground is 42.5∘.
How high is Mark's kite above the ground?
5
Read the problem. What are you trying to figure out?
Draw a diagram. Draw a right triangle and label it with information.
Determine which trig ratio will solve the problem.
Sam measures a 50∘ angle to the top of a building when standing 100 feet from its base. If his eyes are 6 feet above the ground, how tall is the building?
6
Read the problem. What are you trying to figure out?
Draw a diagram. Draw a right triangle and label it with information.
Determine which trig ratio will solve the problem.
A straight road to the top of a hill is 2500 meters long and makes an angle of 12o with the horizontal. Find the height of the hill. Give your answer to the nearest hundred meters,
7
Labelling
Diego has a 10-foot ladder.
He places it against a wall
so it forms a 60-degree with the ground.
ground
wall
ladder
8
Labelling
A zip wire runs between two posts, 25m apart.
The zip wire is at an angle of 10∘ to the horizontal. Calculate the length of the zip wire.
post
wire
ground
9
Labelling
A surveyor wants to know the height of a skyscraper. He places his clinometer on a tripod 1m from the ground. At a distance of 50m from the skyscraper, he records an angle of elevation of 82∘.
sight line
ground
skyscraper
10
Labelling
A flag pole is 20 feet tall. The sun's angle with the ground is 50 degrees, how long is the pole's shadow
sunbeam
flag pole
shadow
11
Labelling
A mountain has a 35-degree slope, and you must hike a 7-mile trail to reach the summit. How tall is the mountain?
trail
height to summit
ground
12
L29
Use trigonometric ratios to solve problems.
Read the problem. What are you trying to figure out?
Draw a diagram. Draw a right triangle and label it with information.
Determine which trig ratio will solve the problem.
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