Triangles
Triangles have an interior angle sum of
180 degrees
All quadrilaterals have an angle sum of ________.
360 degrees.
Can you make a triangle with side lengths of 6, 2, and 4? Why or why not?
No, 2 + 4 = 6, which is equal to 6. The longest side has to be greater than 6.
A triangle has a right angle and a 60 degree angle. What is the missing angle measure?
30 degrees
The names of Mrs. Hulford's Twins
Rowan and Laine
An equilateral triangle has a perimeter of 21cm. What is the length of each side?
7 cm
One angle of a parallelogram measures 60 degrees and another angle measures 120 degrees. What are the measures of the other two angles? Explain.
What is 120 degrees and 60 degrees. Opposite angles in a parallelogram are always equal.
What is the interior angle sum for a 12 sided polygon?
1800 degrees
A quadrilateral has angles of 47, 81, and 164. What is the missing angle?
68 degrees
A single strand of spaghetti is called...
A spaghetto
A triangle is missing an angle measure.
Angle A = 85 degrees
Angle B = 35 degrees
Angle C=?
60 degrees
A quadrilateral with 4 equal sides and 4 right angles is called a __________.
Square
What are the characteristics of a regular polygon?
All angles are the same and side lengths are the same.
A parallelogram has one angle of 42 degrees. What are the measures of the other 3 angles.
42, 138, and 138 degrees
A bolt of lightning has enough energy to toast this many slices of bread.
100,000 slices of bread
If all angles in a triangle have a sum of 180 degrees they are called _________________ angles.
Supplementary
A quadrilateral is missing an angle measure.
Angle A = 84 degrees
Angle B = 33 degrees
Angle C= 126 degrees
Angle D = ?
117 degrees
Can you make more than one triangle with side lengths of 6, 8, and 10?
No, only one triangle can ever be made from 3 given side lengths.
What is the supplement of 112 degrees?
68 degrees
Where is the world's largest pyramid?
4 times larger than the Pyramid of Giza
Can a triangle have two right angles? Explain
No, the angle sum would have to be over 180 because two right angles would already be 180 degrees so the third angle would have to be 0 degrees which is impossible to make a triangle.
A 4-sided shape with opposite sides equal and parallel is called a ______________.
Parallelogram
The interior angle sum is 1440 degrees, how many sides does the polygon have?
10 sides.
An isosceles triangle has one angle of 56 degrees. What are the measures of the other angles? BE CAREFUL!
There are two answers. If 56 degrees is one of the two equal angles, then the other angles are 56 degrees and 68 degrees. If 56 degrees is the angle that is NOT equal to the other two, then the other two angles are both 62 degrees.
The scientific name for a "brain freeze"
Sphenopalatine Ganglioneuralgia