you get to pick 8 of your 12 favorite songs to put on a cd . how many ways 8 songs be arranged from a choice of 12 songs
1 answer:
You might be interested in
Method 1:
You can use the formula of an area of equilateral triangle:
a - length of side
We have a = 10 yd. Substitute:
Method 2:
Use the Pythagorean theorem (look at he picture).
<em>subtract 25 from both sides</em>
The formula of an area of a trinagle:
b - base
h - height
We have b = 10 yd and h = 5√3 yd. Substitute:
