Answer:
65°
Step-by-step explanation:
all angles in a trapezium equate to 360°
R is 115°
115+115=230
360-230=130
130÷2=65
Divide 2.88 by 0.09
2.88/0.09 = 32
$2.88 is 9% of $32
Answer: Longest distance she could measure is 70 mm
Step-by-step explanation:
To find the longest distance from one side to other across the center we have to find the diameter of the lampshade.
As it is given that the distance around the lampshade is 219.8 mm which is equal to the circumference of the lampshade.
Circumference of the lampshade is
πD, where D is the diameter of the lampshade
where the value of π=3.14
Divide both sides by 3.14 we get

on solving we get

Answer:
Step-by-step explanation:
Heres the full question and solution:
Find an equation for the plane containing the point (1,2,3) and parallel to the plane x+2y+3z=5.
solution
Any plane parallel to
is 
since the plane is passing through
we substitute point in equation

equation of the line is 