H is equal to 8
M is equal to 15.3
20-12= 8
9+6.3= 15.3
Hope this helped
3 inside angles = 180
so you have 2=42 and 3 = 52
so 5 = 180 -42-52 = 86 degrees
angle 5 and 6 need to equal 180
so 6 = 180-86 = 94 degrees
Answer is B
(4x2) + (3x1)=11
I think that's right, can you have a plus sign
The regular octagon has eight equal sides. Then the area of the regular octagon of side length be 4.6 is 102 ft².
<h3>What is a regular octagon?</h3>
It is a polygon that has eight equal sides. In a regular octagon, the opposite sides are parallel. And its diagonals are also equal and intersect at mid-point.
Given
A regular octagon has a radius of 6 ft and a side length of 4.6 ft.
We know the formula for the regular octagon.
Area of the regular octagon = 2(1 +
) a²
Where a be the side of a regular octagon.
Then the area of the regular octagon will be.
![\rm Area = 2 (1+\sqrt{2} ) a^2\\\\Area = 2*(1 + 1.414) *4.6^2\\\\Area = 2 * (2.414)* 21.16\\\\Area = 102.16](https://tex.z-dn.net/?f=%5Crm%20Area%20%3D%202%20%281%2B%5Csqrt%7B2%7D%20%29%20a%5E2%5C%5C%5C%5CArea%20%3D%202%2A%281%20%2B%201.414%29%20%2A4.6%5E2%5C%5C%5C%5CArea%20%3D%202%20%2A%20%282.414%29%2A%2021.16%5C%5C%5C%5CArea%20%3D%20102.16)
Thus, the area of the regular octagon of side length be 4.6 is 102 ft².
More about the regular octagon link is given below.
brainly.com/question/858868