180 is the answer....
angle B =50
angle C = 130
Answer:
C=6π=18.84 ( if π=3.14)
Step-by-step explanation:
distance around the edge of the pond means the circumference of the circle=
C=2πr
C=2π(3)
C=6π=18.84 ( if π=3.14)
Answer:
A. 15
Step-by-step explanation:
Answer:
93°
Step-by-step explanation:
By exterior angle theorem:
(4x + 9)° = 2x° + (3x - 12)°
(4x + 9)° = (2x + 3x - 12)°
(4x + 9)° = (5x - 12)°
4x + 9 = 5x - 12
4x - 5x = - 12 - 9
-x = - 21
x = 21
Measure of exterior angle
= (4x + 9)°
= (4*21 + 9)°
= (84 + 9)°
= 93°
