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Stella [2.4K]
2 years ago
11

Can someone help? Need to find x, and measure of angle DEF

Mathematics
1 answer:
Colt1911 [192]2 years ago
4 0

Answer:

x = 5

m\angle DEF = 90\degree

Step-by-step explanation:

GE is the angle bisector of quadrilateral DEFG,

Thus, by angle bisector property:

9x°= (5x + 20)°

9x = 5x + 20

9x - 5x = 20

4x = 20

x = 20/4

x = 5

m\angle DEF = 9x\degree + (5x+20)\degree

m\angle DEF = (14x+20)\degree

m\angle DEF = (14\times 5+20)\degree

m\angle DEF = (70+20)\degree

m\angle DEF = 90\degree

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Find the magnitude of −1−5i
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The magnitude of -1-5i is √26.

<h3>What is the magnitude of -1-5i ?</h3>

Given the complex expression; -1 - 5i

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| a+bi | = √[ a² + b² ]

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| -1-5i | = √[ 1 + 25 ]

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Therefore, the magnitude of -1-5i is √26.

Learn more about magnitudes here: brainly.com/question/18152189

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