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iogann1982 [59]
2 years ago
9

Is the angles 40,30,110 acute obtuse or right

Mathematics
2 answers:
s344n2d4d5 [400]2 years ago
6 0
40 is acute 30 is acute and 110 is Obtuse
ikadub [295]2 years ago
4 0
40 is an acute angle.
30 is an acute angel.
110 is an obtuse angle.

The easiest way to remember is anything below 90° (which is a right angle) is acute (think, cute = small). Anything above 180° is obtuse.
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Answer:

\large\boxed{A=89.6}

Step-by-step explanation:

It's the right triangle. The formula of an area of a right triangle:

A=\dfrac{leg\cdit leg}{2}

We have:

leg=x\\leg=16\\\text{and the angle}\ \alpha=55^o

Use tangent:

tangent=\dfrac{opposite}{adjacent}

opposite=16,\ adjacent=x

\tan55^o\approx1.4281

Substitute:

\dfrac{16}{x}=1.4281        <em>convert the decimal to the fraction</em>

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14281x=160000            <em>divide both sides by 14281</em>

x=\dfrac{160000}{14281}

x\approx11.2

Calculate the area:

A=\dfrac{(16)(11.2)}{2}=89.6

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3 years ago
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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