Answer:
84n-27
Step-by-step explanation:
-9(1-10n)-2(3n+9)
-9+90n-6n-18
-27+84n
25 degrees
40 + 50 = 90
2 x 25 = 5
3
8 in, 8 in and 20 in
Let the equal sides of the isosceles triangle be x, then
The base = 2.5x
Sum the 3 sides and equate to the perimeter of 36
x + x + 2.5x = 36
4.5x = 36 ( divide both sides by 4.5 )
x = 8
Thus the 2 equal legs = 8 in
base = 2.5x = 2.5 × 8 = 20 in
