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Aleks [24]
3 years ago
8

Somebody help me please

Mathematics
1 answer:
lubasha [3.4K]3 years ago
8 0

A triangles angles measure up to 180° so before finding x you must find the missing angle.

So lets make an equation:

180=22+23+a

(a is the missing angle)

So add 22+23=45

180=45+a

Subtract 45 from both sides to isolate A

180-45=45-45+a

135=a

135° is your missing angle

So now we have to find X

A straight line measures to 180° so now we subtract 135°(or a) from 180°

180-135=x

x=45

Therefore X is 45°

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Answer:

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Step-by-step explanation:

8y - 2d = 0 ---------------(I)

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5y + 4d =  105/4  ------------------(II)

(I)*2      16y  - 4d = 0

(II)          <u>5y + 4d = 105/4</u>      {add (I) &(II)}

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y = \frac{105}{5*21}\\\\y=\frac{105}{105}\\\\y = 1

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