Answer:
75081
Step-by-step explanation: multiply 80950 by 0.9275
Actually I had learnt this but.....do u want a formula ?
Answer:
<em>The surface area is multiplied by 4/9.</em>
Step-by-step explanation:
<u>Surface Area of a Cone</u>
Being r the radius and l the slant height of a cone, then its surface area is

Now let's think both the radius and the slant height are multiplied by the same factor k, i.e.
r'=kr
l'=kl
The new surface area is


The new surface area is the
times original SA. Since k=2/3, then

The surface area is multiplied by 4/9.
Complete the square in the denominator.

Rewrite the given transform as

Now take the inverse transform:
