Quadrilaterals
I am a quadrilateral with exactly 1 pair of parallel sides and no right angles. What am I?
Trapezoid
What is the main difference between a line segment and a line? Draw them and explain.
A line segment connects two points, and a line passes through points and keeps going forever.
An acute angle measures ______ than 90 degrees.
less
What is the perimeter of a square with a length of 54 inches?
216 inches
I am a triangle with 3 sides of congruent length. What am I?
Equilateral triangle!
I am a parallelogram with 4 congruent sides. What could I be?
rhombus or square
Which polygons (quadrilaterals and triangles) have 3 or more lines of symmetry?
squares(4) and equilateral triangles(3)
True!
What is the perimeter AND area of a rectangle with a length of 42m and a width of 9m?
P= 102m; A= 378sqm
I am a triangle with 2 congruent sides. What am I?
Isosceles triangle!
I am a quadrilateral with 2 pairs of parallel sides. What could I be?
Parallelogram, square, rhombus, rectangle...
Parallel lines are straight lines that intersect. True or false?
FALSE! They never intersect or cross, they maintain a constant difference between them!
Obtuse angles are ______ than 90 degrees.
greater
Mr. Bob fenced in his yard. The yard has an area of 45sqft and a length of 9ft. What is its width?
5ft
A triangle can have 2 obtuse angles. True or false?
FALSE! Try to draw it- you can't!
Can a trapezoid be a parallelogram? Why or why not?
No! A trapezoid has only 1 pair of parallel sides; a parallelogram has 2 pairs.
Perpendicular lines ALWAYS intersect at a right (90) angle. True or false?
TRUE! Don't forget the right angle part!
What is the measurement of a line?
180 degrees (straight line)
Mr. Bob wants to put down new carpet in his living room. The length of the living room is 17m and width is 13m. How much carpet does he need?
He also decided to find the perimeter (he was bored). What is the perimeter of the living room?
A = 17 x 13 = 221sqm
P = 17+17+13+13 = 60m
A triangle can have all acute angles. True or false?
True!
Are all rhombuses squares? Why or why not?
No! While they both are quadrilaterals with 4 congruent sides, a square has 4 right angles and a rhombus has NO right angles.
What quadrilateral(s) have NO lines of symmetry?
regular parallelograms
Perpendicular lines cross at a/an _________ angle. (right, acute, obtuse, or any)
RIGHT!
Mr. Bob has a flower garden with a length of 28ft and width of 9ft. He also has a vegetable garden with a length of 14ft and width of 5ft. What is the total area of all of Mr. Bob's gardens?
(28x9=252) + (14x5=70) = 322sqft
How many lines of symmetry does an equilateral triangle have?
3