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3 years ago

Solve for x A. 9 B. 10 C. 42 D. 12

Mathematics

2 answers:

Eva8 [605]3 years ago

8 0

Answer:

Given:-

m∠DEF= (4x-8) °

m DE= 80°

Using a property :- m ∠DEF= 1/2 (m DE)

$(4x-8)$ ° $= 1/2 (80)$

$(4x-8)$ ° $=(40)$ °

$4x-8=40$

Add 8 to both sides:-

$4x=48$

Divide both sides by 4:-

$\frac{4x}{4}=\frac{48}{4}$

$x=12$

OAmalOHopeO

Cloud [144]3 years ago

4 0

Answer:

Option D, 12

Step-by-step explanation:

4x-8=80/2

or, 4x-8=40

or, 4x=48

or, x=12

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