2 years ago

PLEASE HELP I NEED HELP ASAP TRANSVERSAL ANGLES A LOT OF POINTS ON THE LINE.

Mathematics

1 answer:

guapka [62]2 years ago

5 0

Answer:

Step-by-step explanation:

so basically you have to look for the opposite side of what they give you. then just plot it in

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2 years ago

PLZ HELP

Alex

Answer:

The correct option is C ) 109.5°

Therefore,

$m\angle E=109.5\°$

Step-by-step explanation:

Given:

In Triangle DEF

d = 10

e = 18

f = 12

To Find

angle E = ?

Solution:

In Triangle DEF , Cosine Rule says

$\cos E=\dfrac{f^{2}+d^{2}-e^{2}}{2fd}$

Substituting the values we get

$\cos E=\dfrac{12^{2}+10^{2}-18^{2}}{2\times 12\times 10}$

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Therefore,

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