Answer:
x=3 y=4
Step-by-step explanation:
5(4)=20
4(3)= 12
20-12=8
4+3=7
Angle 1 is equal to 48°
if angle 3 and 2 are known you add them and subtract from 180
Answer:
Geometric Mean = 9.17
Step-by-step explanation:
Here,
a = 7
b = 12
Geometric mean = root(ab)
= root( 7 x 12)
= root(84)
= 9.17
A NONA=9, nonagon has 9 sides, so it's perimeter is 7+7+7+7+7+7+7+7+7, or 63, and we know the apothem.
bearing in mind that the area of a regular polygon is
(1/2)ap a = apothem, p = perimeter
so in this case that'd be (1/2)(5)(63).
The answer as a fraction is 6/11
