A triangle is
A polygon with
3 angles(x2)
3 sides
Answer: B. x is all real numbers.
Step-by-step explanation: The domain of a graph is how far the x value can go left or right. Because this is a horizontal line, the domain or x could be any value.
Answer:
D
Step-by-step explanation:
The given angles are vertically opposite and congruent , then
7x + 13 = 48 ( subtract 13 from both sides )
7x = 35 ( divide both sides by 7 )
x = 5 → D
Answer:
8 and 12
Step-by-step explanation:
The perimeter of the given rectangle is ...
P = 2(L +W)
P = 2(14 +21) = 2(35) = 70
The scale factor to the similar triangle is ...
similar perimeter/original perimeter = 40/70 = 4/7
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The dimensions of the similar triangle are the original triangle dimensions multiplied by this scale factor:
(14)(4/7) = 8
(21)(4/7) = 12
The sides of the similar triangle are 8 and 12.