Number of faces + (Number of vertices - Number of edges) = 2
So plugging in the numbers it would then be
18+(12-30)=2
18-18=2
0=2
Kelvin would be wrong and I disagree with him. (Because ...*plugin work cited above*)
Answer:
101 divide by 102 multiply by 564
Formula for the area of a circle: A = pi * r^2
A semi-circle is half of a circle. So, we will need to divide the area of the total circle by 2 to find the area of a semi-circle.
r = d / 2
r = 6 / 2 = 3
A = pi * 9
A = 9pi
Semi-circle:
A = 9pi / 2
A = 4.5 pi cm^2 or 14.14 cm^2
Hope this helps!! :)
<span>Here, Elaine = Tyler + (-8)
</span>⇒ E<span>laine + 0 + Tyler + 0 = 34
</span>⇒ T<span>yler + (-8) + 0 + Tyler + 0 = 34
And, Tyler = [(34 - (0) - (-8)] / 2
Thus, Tyler = 21
And, Elaine = 21 + (-8)
=13
</span>∴ T<span>yler = 21 & Elaine = 13
Regards
#Exotic Explorer</span>
