Answer:
AC = 20
Step-by-step explanation:
C is the midpoint of BD.
That means that BC = CD
BC = x + 4
CD = 3x - 10
x + 4 = 3x - 10 Subtract x from both sides
4 = 3x - x - 10 Combine
4 = 2x - 10 Add 10 to both sides
4 + 10 = 2x - 10 + 10 Combine
14 = 2x Divide by 2
14/2 = 2x/2 Combine
7 = x
AC = AB + BC
AC = 2x - 5 + x + 4
AC = 3x - 1
AC = 3*7 - 1
AC = 21 - 1
AC = 20
Answer:
Angle A would be 40°
Step-by-step explanation:
The sum of all angles of a triangle is 180° always.
So, the sum of 80° , 11x - 4 and 15x would be 180°
80° + 11x - 4 + 15x = 180°
80 - 4 + 11x + 15x = 180°
76 + 26x = 180
26x = 104
x = 
x = 4
Since angle A is 11x - 4, its measure would be
(11 x 4) - 4
44 - 4
40.
We know, Circumference = <span>π * Diameter
8</span>π = <span>π * d
d = 8</span>π / <span>π
d = 8 cm
In short, Your Answer would be Option D
Hope this helps!</span>
Answer: 16, 477
Step-by-step explanation:
This number is not between 16500 or 16700
