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3 years ago

PLEASE HELP 99 POINTS!!!

Mathematics

2 answers:

TEA [102]3 years ago

5 0

Here, Angles under a straight line would be equal to 180
So, 70 + 60 + y = 180
130 + y = 180
y = 180 - 130
y = 50

Now, x = y [ As they are vertically opposite angles ]

In short, Your Answer would be 50

Hope this helps!

Dovator [93]3 years ago

3 0

Remember, only a pair of angles can be supplementary. Sure, the three angles in a triangle may add up to 180 degrees, but there are three angles in a triangle, so they are not supplementary!

So the answer is 50.

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3 years ago

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ivann1987 [24]

Answer:

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Step-by-step explanation:

I warn you, I'm not positive I'm correct.

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2 years ago

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Answer:

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2 years ago

Find the surface area, in square centimeters, of

nydimaria [60]

The surface area of the hemisphere with radius r = 19 cm. is 3400.62 square centimeters

<h3>How to determine the surface area?</h3>

The radius is given as:

r = 19

The surface area of a hemisphere is:

Area = 3πr²

So, we have:

Area = 3 * 3.14 * 19²

Evaluate

Area = 3400.62

Hence, the surface area of the hemisphere is 3400.62 square centimeters