Theorem Examples 30 30°-60°-90° Triangle Theorem In a 30°-60°-90° triangle, the length of the hypotenuse is 2 multiplied by the length of the shorter leg, and the longer leg is v3 multiplied by the length of the shorter leg. 10 5v3 60 30 60° 5. 22 In a 30°-60°-90° triangle, if the shorter leg length is x, then the hypotenuse length is 2x and the longer leg length is x. 60 2x 30 xV3 Use the 30°-60°-90° Triangle Theorem to find the values of x and y in AHJK. 30 Longer leg = shorter leg multiplied by V3. Divide both sides by v3. 12 = xV3 12 V3 4V3 = x 12 Rationalize the denominator. 60 y = 2x Hypotenuse = 2 multiplied by shorter leg. y = 2(4 V3) y = 8 V3 Substitute 4 V3 for x. Simplify. Find the values of x and y. Give your answers in simplest radical form. 5. 6. 30 30 60 18 60 7. 8. 60 60 30 24V3 30 33
Theorem Examples 30 30°-60°-90° Triangle Theorem In a 30°-60°-90° triangle, the length of the hypotenuse is 2 multiplied by the length of the shorter leg, and the longer leg is v3 multiplied by the length of the shorter leg. 10 5v3 60 30 60° 5. 22 In a 30°-60°-90° triangle, if the shorter leg length is x, then the hypotenuse length is 2x and the longer leg length is x. 60 2x 30 xV3 Use the 30°-60°-90° Triangle Theorem to find the values of x and y in AHJK. 30 Longer leg = shorter leg multiplied by V3. Divide both sides by v3. 12 = xV3 12 V3 4V3 = x 12 Rationalize the denominator. 60 y = 2x Hypotenuse = 2 multiplied by shorter leg. y = 2(4 V3) y = 8 V3 Substitute 4 V3 for x. Simplify. Find the values of x and y. Give your answers in simplest radical form. 5. 6. 30 30 60 18 60 7. 8. 60 60 30 24V3 30 33
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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