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bekas [8.4K]
3 years ago
11

Which best describes the angles of some parallelograms? A. Four obtuse angles B. Four acute angles C. Two acute and two obtuse a

ngles
Mathematics
1 answer:
anyanavicka [17]3 years ago
5 0
Some parallelograms have 2 obtuse and 2 acute angles.  

Parallelograms may have all 90 degree angles as well.  These are also called rectangles.  

When you "bend" a rectangle it naturally forms 2 acute and 2 obtuse angles.
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The hypotenuse and one of the legs of a right triangle form an angle that has a cosine of 2 2 . what is the measure of the angle
creativ13 [48]
The correct question is
The hypotenuse and one of the legs of a right triangle form an angle that has a cosine of √<span>2/2 . 
What is the measure of the angle? 

Let
</span>∅--------> the angle
cos ∅=√2/2<span>
cos </span>∅=[distance of one of the leg/hypotenuse]
[distance of one of the leg/hypotenuse]=√2/2

<span>I could say that
</span>distance of one of the leg=√2
and 
hypotenuse=2
so
<span>applying the Pythagorean theorem
</span>c=hypotenuse=2
a=√2
b=?
c²=a²+b²-------> b²=c²-a²------> b²=2²-(√2)²-----> b²=2-----> b=√2

therefore
if a=b
then 
the angle ∅=45°

the answer is the option
<span>b.45 degrees</span>
7 0
3 years ago
5 to 7 and please solve with equations thx
padilas [110]

Answer:

Step-by-step explanation:

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2 years ago
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