Geometric Terms!!! By: Mya, Morgan, and Victoria

Obtuse angles An angle that is more that 90 degrees.

Right Angles An angle that always equals 90 degrees.

Acute angles An acute angle is an angle that is less than 90 degrees!

Right Triangle A triangle with one right angle.

Scalene Triangle A scalene triangle is a triangle that has no equal sides.

Isoceles Triangle An isoceles triangle is a triangle with two equal sides.

Acute Triangle Triangle that has all acute angles or less than 90 degrees.

Obtuse triangle A triangle with one obtuse side or more than 90 degrees.

Quad means four, so a quadrilateral is a FOUR sided shape. The formula for area is base times height. The total degrees inside a quadrilateral is 360 degrees. Quadrilateral

Parallelogram A parallelogram is a four sided shape (quadrilaterial) with two sets of parallel lines.

Parallel lines Parallel lines are two lines that never intersect.

Intersecting Lines Intersecting lines are lines that cross, the opposite of parallel lines, forming an angle.

Perimeter The distance around an object is the perimeter. Add all the sides together to get the perimeter.( )

Trapezoid! A trapezoid is a quadrilateral that has only one set of parallel lines. The formula for finding the area is base times height. The interior degrees is 360.

A rhombus is a parallelogram that has four equal sides. And it is also a square that has been sat on. The formula for finding the area is base multiplied by height. Rhombus

Rectangle A rectangle is a quadrilateral and a parrallelogram. A square can be a rectangle, but a rectangle can not be a square. The formula to find the area is base multiplied by height.

Square A square is the most simplified of the quadrilaterals. It has all equal sides, two sets of parallel lines and the interior degrees is 360. The formula for finding the area is base times height.

Radius Straight line that run from the middle to the side. it is half of the diameter.

Circumference Circumference is the distance around any circle.

Diameter A straight line that runs in the middle of a circle from side to side.

Congruent Of the same length.

Adjacent Next to or adjoining something else.

Supplementary Angles Supplementary angles are two angles that add up to 180 degrees.

Complementary Angles Two angles that equal 90 degrees.

Perpendicular Lines Perpendicular lines are lines that meet and form a right angle.

Vertical angle Angles opposite each other when two lines meet.

Area of a circle! To find the area of a cirlce you have to take the radius (have the diameter) squared, and multiply it by pi, or 3.14.

Area of a trianlge To find the area of a trianlge you need to tale the base times the height, divided by two, one triangle is half of a square. The interior degrees of a triangle is 180 degrees.

Area of a rhombus To find the area of a rhombus you need to multiply the base times the height. You might need to draw in a extra line as the base, it is the same formula as the square, because a rhombus is just a square that has been tilted, or sat on. :)

Area of a rectangle To find the area of a rectanlge you need to multiply the base by the height. Or length multiplied by width.

Area of a square To find the area of a square you multiply base times height, or length multiplied by width.

Area of a parallelogram To find the area of a parallelogram you multiply base multiplied by height, or length multiplied width.