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Mathematics 14 Online
xXQuintonXx:

help please(ss below)

xXQuintonXx:

snowflake0531:

What is the radius?

xXQuintonXx:

3?

Shawnte:

Ahhh yes

snowflake0531:

Yes so now use the pythagorean theorem \[a^2 + b^2=c^2 \\3^2 + h^2 = 9^2\]

snowflake0531:

So what does 3 squared and 9 squared simplify to?

xXQuintonXx:

so i do 3^2x9?

snowflake0531:

.... No what is 3 squared What is 9 squared

xXQuintonXx:

9 81

snowflake0531:

Yes so \[ h^2 + 9 =81 \] Subtract 9 from each side

xXQuintonXx:

so its h2=72?

snowflake0531:

._. \[ h^2 = 72 \\ h = \sqrt72 \]

xXQuintonXx:

8.48528137424

snowflake0531:

keep it in square root form

xXQuintonXx:

so its 8?

snowflake0531:

... it's 72

xXQuintonXx:

i thought i had to get the root of 72 XD im smart lol

snowflake0531:

The answer is sqrt72, but it has already wrote the square root for you lol

xXQuintonXx:

thanks xd

snowflake0531:

yw~

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