Name this triangle.
Right triangle
A four sided, four angled polygon
Quadrilateral
Line AB
6 x 7
42
40 square centimeters
The number of obtuse angles an obtuse triangle must have
One
Trapezoid
Perpendicular lines
9 times as much as 3
27
64 square feet
The number of acute angles an acute triangle must have
three
A quadrilateral with two pairs of parallel sides
A parallelogram
Ray EF
10 x 34
60 square inches
A three sided polygon
Triangle
Rhombus
Angle CBA
456 x 3
1368
21 square units
The sum of the interior angles in a triangle
180
The properties of a square
equal side lengths, two sets of parallel sides, equal angles.
An angle that measures more than 90 degrees
Obtuse angle
4 times as much as 7
28
16 square units