second quater geometry Flashcards
plane figure bounded by ______. line segments
three
A _____. is appropriately named.
triangle
the prefix “tri means _____.
three
2-dimensional (a flat shape figure) and closed (its straight lines/sides join up)
triangle
The interior angles add up to _____.
180 degrees
the part of a plane that is limited by the sides of a triangle is called ___.
surface
the line segments that bound a triangle is called __.
sides
each part of the plane enclosed between consecutive sides of a triangle is called __.
angle
the side opposite each vertex maybe considered as a ___.
base
the point where two sides of a triangle meet is called ___.
vertex
the total measurement of the sides of s triangle is called __.
perimeter
a line segment drawn from any one vertex of a triangle perpendicular to the opposite side is called
altitude
in a right triangle the opposite of the right angle is called the __.
hypotenuse
in a right triangle the sides forming the right angle are called ___.
catheti
___. is the singular form of catheti another term for catheti is legs
cathetus
what is the formula for finding the missing angle? (whole formula)
x = 180 - (m<1 +m<2)
x = 180 - (54 + 69)
x = 180 - 123
x = 57
what is the formula for perimeter of a triangle? (whole formula)
p = s1 + s2 + s3
p = 10 + 10 + 40
p = 60
what is the formula for missing side of a triangle with given perimeter?
s = p divided 3
&
s3 = p - (s1 +s2)
🔼 HOT is an obtuse angle its sides are: s1 34 s2 21 s3 x
solve for the answer.
125 degrees
🔼 LIP is an right angle find the perimeter
sides: s1 90 s2 12 s3 69
171 degrees
🔼 RAT is an equilateral triangle and if all of its side are 30 degrees what is the perimeter?
90 degrees
