Answer:
So, we know that the internal angles of a triangle add up to 180 degrees, yes?
60 degrees plus 50 degrees equals 110 degrees, and subtract 110 from 180, and you get 70 degrees for angle y.
Now, if the triangles are congruent (identical) and the shape you are describing is like an hourglass, then because of the vertical angles theorem, angle x should be 70 degrees too!
Hope I helped!! :)
Answer:
If your asking if your work is correct, its not.
Each triangle has an area of 10 inches
the total area of the placemat is 420 inches
Step-by-step explanation:
Formula for area of a triangle is 
b · h
Answer: b) 384 sq. in.
Step-by-step explanation:
Surface area of cube = 6a^2
= 6 (8)^2
= 6 x 64
= 384 sq. in.
Answer:
$51.84
Step-by-step explanation:
First you neeed to figure out how much 40% of 80 is,
It is 38
Next subtract that from 80 to get the discounted price
To figure out how much is sales tax, Find out what 8% of 48 is it is 3.84
Add the to 48 and you have your answer
Its actually the first one because its a hexagon and that line Is the only line that can cut the shape in half
