Geometry Vocab
part of a line with two endpoints
line segment
a triangle with three equal sides
equilateral triangle
A quadrilateral with one pair of parallel sides
trapezoid
What is the formula for finding the area of a triangle?
(b x h / 2) or (1/2 x b x h)
What is the formula for find the radius of a circle
diameter divided by 2
a straight path that goes on forever in two directions
line
a triangle with an angle measure 135 degrees
obtuse triangle
a quadrilateral with four equal side lengths
rhombus
What is the formula for find the area of a trapezoid?
1/2 x h x (b1 + b2)
What is the formula for finding the diameter of a circle?
Radius x 2
lines that form right angles at the point where they cross
perpendicular lines
a triangle with two sides equal length
isosceles triangle
a quadrilateral with four right angles
rectangle
find the area of a triangle with the following measurements:
b = 12in
h = 30in
180 inches squared
Find the radius of the circle if the diameter is 56 in
28 in.
two rays that meet at the same point
angle
a triangle with three angles that measure 60 degrees
acute triangle
a quadrilateral with two pairs of parallel sides
parallelogram
Find the area of a parallelogram with the following measurements:
b = 16 cm
side length = 8 cm
height = 13 cm
208 cm squared
Find the diameter of a circle if the radius is 12.34 inches
24.68 in
lines that cross over each other
intersecting lines
a triangle with one right angle and two sides that have the same length
right isosceles triangle
a quadrilateral with four right angles, four equal sides lengths, and two pairs of parallel sides
square
Find the area of the trapezoid with the following measurements
b1 = 6km
b2 = 8km
height = 16km
112 km squared
Find the radius of a circle if the diameter is 63.2 centimeters.
31.6 cm