The ratio from the first triangle to the second triangle is 1:2
Answer:
let missing number be x
63/21=9/x
or. 63x=9*21
or 63x=189
or x=189/63
or x=3
. missing number of this proportion=3
NO it is not well defined because well defined means not vague basically this is vague more details to why they are the ten and what are the ten. Hoped this helps
Answer:
Step-by-step explanation:
Here we are given four equations and we have to find the equation that gives the number of half inches that are in 
inches.
To find how many half inches i.e. 
inches are there in inches we have to divide by .
So, the equation that will give the result is 
(Answer)
Answer:
Each side of the octagon a length of 6 cm
Step-by-step explanation:
Divide the perimeter by the amount of sides the shape has.
48 ÷ 8 = 6
