Can someone help me please!!!!

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asked Apr 19, 2019 225k views

1 Answer

Sadeghbayan · Answer 1 · 2019-04-23T10:01:14+0000

Given:
Right triangle DEF right-angled at F.
ED=97 (hypotenuse)
DF=72 (opposite side of angle E)
FE=65 (adjacent side of angle E)

Cosine of angle E
=(adjacent side)/(hypotenuse)
=FE/ED
=65/97
=0.6701 (to four decimal places)

Can someone help me please!!!!

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