15 Questions
What is the sum of the interior angles of a quadrilateral?
360 degrees
What type of angle is greater than 180 degrees but less than 360 degrees?
Reflex Angle
What is a characteristic of a rhombus?
All sides are equal
What is the Pythagorean Theorem used for?
Finding the length of the hypotenuse of a right triangle
What type of triangle has two sides of equal length?
Isosceles Triangle
What is a type of angle that is exactly 90 degrees?
Right Angle
What is a characteristic of a rectangle that is not true for a trapezoid?
All interior angles are right angles
If two angles are supplementary, what can be said about their sum?
It is always equal to 180°
What is a property shared by all quadrilaterals and triangles?
Sum of interior angles is 180°
What type of triangle has a property that is not true for a rectangle?
Scalene triangle
What is a characteristic of adjacent angles?
They share a common vertex and side
What can be said about the exterior angle of a triangle?
It is equal to the sum of the two opposite interior angles
What type of quadrilateral has a property that is not true for a square?
Trapezoid
What can be said about the sum of any two sides of a triangle?
It is always greater than the third side
What type of angle is formed by two complementary angles?
Right angle
Study Notes
Angles
-
Types of Angles:
- Acute Angle: less than 90 degrees
- Right Angle: exactly 90 degrees
- Obtuse Angle: greater than 90 degrees but less than 180 degrees
- Straight Angle: exactly 180 degrees
- Reflex Angle: greater than 180 degrees but less than 360 degrees
-
Angle Properties:
- Complementary Angles: two angles that add up to 90 degrees
- Supplementary Angles: two angles that add up to 180 degrees
- Vertical Angles: two angles formed by two intersecting lines, always equal
-
Angle Measurement:
- Degrees: unit of measurement for angles, where 1 full rotation is 360 degrees
- Radians: unit of measurement for angles, where 1 full rotation is 2π radians
Quadrilaterals
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Types of Quadrilaterals:
- Rectangle: all angles are right angles, opposite sides are equal
- Square: all angles are right angles, all sides are equal
- Rhombus: all sides are equal, opposite angles are equal
- Trapezoid: two pairs of opposite sides, where one pair is parallel
- Kite: two pairs of adjacent sides, where one pair is equal
-
Properties of Quadrilaterals:
- Diagonals: two diagonals that bisect each other and form four right triangles
- Interior Angles: sum of interior angles is 360 degrees
Triangles
-
Types of Triangles:
- Equilateral Triangle: all sides are equal
- Isosceles Triangle: two sides are equal
- Scalene Triangle: all sides are unequal
- Right Triangle: one right angle (90 degrees)
-
Properties of Triangles:
- Angles: sum of interior angles is 180 degrees
- Sides: sum of any two sides is greater than the third side
- Pythagorean Theorem: a^2 + b^2 = c^2, where c is the hypotenuse of a right triangle
Test your knowledge of basic geometry concepts, including types of angles, properties of quadrilaterals, and properties of triangles. Learn about angle measurement, types of quadrilaterals, and key properties of triangles.
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