Thats means angle BEC is 63. By the vertical angle theorem AED is the same. 3x-27 when x=30 is also 63.
Split the object then find the 2 areas then subtract
Using the formula
L=rx (x=angle)
x=L/r
x=8/3
x=2.6 radians
Answer:
40 ft
Step-by-step explanation:
Perimeter is the sum of all 3 sides of a triangle.
For this particular triangle, add 8+20+12:
40
