Answer:
69
Step-by-step explanation:
Answer: the cost of the love seat would be $89
Step-by-step explanation:
Let cost of sofa be x
let cost of love seat be y
x + y = 267
x = 2y
2y + y = 267
3y = 267
3/3y = 267/3
y = 89
hope it helps :)
R=12cm
circumference=2×pi×r
=2×3.14×12
=75.36cm
area = pi×r^2
=3.14×12×12
=3.14×144
=452.16cm^2
Answer:
a) 150°
b) 30°
Step-by-step explanation:
It is easier to work the exterior angle first.
<h3>b)</h3>
The sum of exterior angles is 360°. The exterior angle at any vertex of a regular dodecagon will be 1/12 that:
360°/12 = 30° . . . the measure of one exterior angle
__
<h3>a)</h3>
The measure of an interior angle will be the supplement of the adjacent exterior angle.
180° -30° = 150° . . . the measure of one interior angle