It's just a tiny bit sloppy. The 10.2 cm should be designated with a right angle too. I'll answer it that way.
Area = (L1 + L2)*h/2
L1 = 10.2
L2 = 12.2
h = 12.6
all givens are in cm.
Area = (10.2 + 12.2)*12.6/2
Area = 22.4 * 6.3
Area = 78.12 cm^2
Answer:
Our composed function is 
.
Step-by-step explanation:
We are given two separate functions:
We need to find the composition of 
. This is literally stating "f of g of x."
Therefore, we simply plug g(x) into f(x) and solve. We replace the x-value in the f(x) function with the entirety of the g(x) function and simplify.
Our composed function is .
In isosceles triangles, all angles = 180 degrees and two angles are the same.
Therefore, the two remaining angles equal 69 degrees
180 - 42 = 138
138/2 = 69
The perimeter of the larger octagon would be 238 units. This is because the given side is multiplied by 7, so if you do this to all sides and then add them up, you get 238. To check, you can divide 238 by 34 and get 7.
