Answer:. True
Explanation:
yes it is true in my opinion
<em>r = 15 cm</em>
<em>formula</em>
<em>V = πr²×h/3</em>
<em>replace</em>
<em>4950 = 22/7×r²×21/3</em>
<em>4950 = 22/7×r²×7</em>
<em>4950 = 22×r²</em>
<em>r² = 4950/22</em>
<em>r² = 225</em>
<em>r = √225</em>
<em>r = √15²</em>
<em>r = 15 cm</em>
Explanation:
It's placed near the door. When a visitor presses the button, the bell rings inside alerting you that someone is at the door.
Answer:
b.font tag
is used to change the appearance of your text on your web page
