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Please someone help me with this ASAP with the workout!!

Please someone help me with this ASAP with the workout!!-example-1
User M Falanga
by
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1 Answer

2 votes

Answer:

71 degrees

Explanation

From the triangle shown;

YX² = YZ² + XZ² - 2(YZ)(XZ) cos Z

28² = 25² + 23² - 2(25)(23) cos Z

784 = 625 + 529- 1150 cos Z

784 - 1154 = -1150cos Z

-370 = -1150cos Z

cos Z = 370/1150

cos Z = 37/115

cos Z = 0.3217

Z = arccos 0.3217

Z = 71.23

hence the measure of <Z is 71 degrees

User Herpderp
by
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