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3 years ago

PLEASE HELP!!!!!!!!!!

Mathematics

2 answers:

vladimir2022 [97]3 years ago

7 0

Hey there!

All the angles in a triangle add up to 180.

So,

70+30+x=180

100+x=180

x=80

I hope this helps!

~kaikers

nordsb [41]3 years ago

4 0

X=80 degrees. A triangle is equal to 180 degrees and 70 plus 30 equals 100 degrees. You need 80 more degrees to make 180 degrees.

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3 years ago

faust18 [17]

Answer:

Option D. $392.5\ units^{3}$

Step-by-step explanation:

we know that

The volume of the cone is equal to

$V=\frac{1}{3} \pi r^{2}h$

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$h=15\ units$

$r=5\ units$

substitute the values

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4 years ago