not sure but:
1. 72 degrees? (Or not ;_;)
2. BC = 45 cm
3. 27 units.
Solution for number 1 (kinda unsure about this, its been ages).
Since PD is the perpendicular bisector to angle FDE,
angle 1 = angle 2
Find: Angle FDE
36*2 (since angle 1 and two are equal)
= 72 degrees
Solution number 2:
Since AP = PB
AC = CB
therefore:
AC = 45 cm
which would make;
CB = 45 cm
Solution for number 3:
2x + 11 = 4x - 5
11 + 5 = 4x - 2x
16 = 2x
x = 8
2(8) + 11 = 27
4(8) - 5 = 27
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Answers & Comments
not sure but:
1. 72 degrees? (Or not ;_;)
2. BC = 45 cm
3. 27 units.
Solution for number 1 (kinda unsure about this, its been ages).
Since PD is the perpendicular bisector to angle FDE,
angle 1 = angle 2
Find: Angle FDE
36*2 (since angle 1 and two are equal)
= 72 degrees
Solution number 2:
Since AP = PB
AC = CB
therefore:
AC = 45 cm
which would make;
CB = 45 cm
Solution for number 3:
2x + 11 = 4x - 5
11 + 5 = 4x - 2x
16 = 2x
x = 8
2(8) + 11 = 27
4(8) - 5 = 27