Answer: D
Step-by-step explanation:
A counterexample is an isosceles trapezoid.
Check the picture below.
Answer:
point C
both planes include point C so that is where they intersect
18.75 or 18 3/4
Answer:14
x+y=56
x:y=5:3
Sum of ratio=5+3
Sum of ratio=8
x=5/8x56
x=(5x56) ➗ 8
x=280 ➗ 8
x=35
y=3/8x56
y=(3x56) ➗ 8
y=168 ➗ 8
y=21
x-y
35-21=14
x-y=14
