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Example 3 Using Similar Trlangles To comply with the Americans with Disabilities Act, wheelchair ramps made for new constructions must have a height to length ratio of 1:12. At a new construction, the height h to the bottom of a a door is 2.5 feet. Use the proportion b to estimate the length r that the ramp should be to have the correct slope ratio. In the proportion, use a = 1 ft and b 12 ft. h a Solution a h Write proportion. b r Substitute. r r =_ ft Answer The ramp should have a length of Cross product property feet.

Example 3 Using Similar Trlangles To comply with the Americans with Disabilities Act, wheelchair ramps made for new constructions must have a height to length ratio of 1:12. At a new construction, the height h to the bottom of a a door is 2.5 feet. Use the proportion b to estimate the length r that the ramp should be to have the correct slope ratio. In the proportion, use a = 1 ft and b 12 ft. h a Solution a h Write proportion. b r Substitute. r r =_ ft Answer The ramp should have a length of Cross product property feet.

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 94E
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Example 3 Using Similar Trlangles To comply with the Americans with Disabilities Act, wheelchair ramps made for new constructions must have a height to length ratio of 1:12. At a new construction, the height h to the bottom of a a door is 2.5 feet. Use the proportion b h to estimate the length = r that the ramp should be to have the correct slope ratio. In the proportion, use a = 1 ft and b = 12 ft. ha Solution a h Write proportion. b r Substitute. r = _ft Cross product property Answer The ramp should have a length of feet. ||
Transcribed Image Text:Example 3 Using Similar Trlangles To comply with the Americans with Disabilities Act, wheelchair ramps made for new constructions must have a height to length ratio of 1:12. At a new construction, the height h to the bottom of a a door is 2.5 feet. Use the proportion b h to estimate the length = r that the ramp should be to have the correct slope ratio. In the proportion, use a = 1 ft and b = 12 ft. ha Solution a h Write proportion. b r Substitute. r = _ft Cross product property Answer The ramp should have a length of feet. ||
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