Seudónimo Seudónimo

15-09-2020
Mathematics

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∠E and ∠F are supplementary. If m∠E = (9x – 38)° and m∠F = (2x + 42)°, find m∠F. *

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Annicabell2 Annicabell2

15-09-2020

answer:

∠F = 74°

explanation:

( Find the value of x )

∠ E + ∠ F = 180°

9x - 38 + 2x + 42 = 180

11x + 4 = 180

11x = 176

x = 16

( Find ∠ F using x )

∠ F = 2x + 42

x = 16

∠ F = 2(16) + 42

∠ F = 32 + 42

∠F = 74°

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