Answer:
7/4 +1/6 +X=15/2
1/6+X=15/2-7/4
1/6+X=30/4-7/4
X=23/4 - 1/6
X= 138-4/24
134/24
5.58333
Step-by-step explanation:
Answer:
77.25 cm^2
Step-by-step explanation:
Area of a regular octagon :
2a^2(1 + (sqrt2))
where a is the side
substitute 4 in for 'a'
15+(10-x)=15 would be your equation if that is what you are looking for.
Area is equals length times (*) breath
L*b
10.3*9.3
=95.79l
252 you multiply the 42 and 12 then devoid even by 2
