Identifying Triangles
Congruent is another word for...
Equal.
True or False. An acute angle triangle can have a 76° angle, a 41° angle, and a 63° angle. This refers to the angles of a single triangle.
True. Every angle is less than 90°. They also add up to 180°.
True or False? The "n" in the formula (n-2)180 represents the number of sides in a polygon.
The longest side of a right triangle is called
Hypotenuse
What is the past tense of "seek?"
Sought
I am a triangle. Two of my sides are equal, and so are two of my angles. Which triangle am I?
I am an Isosceles triangle.
What are the three rules of a triangle?
Triangles must have three sides
Triangles must be a closed shape
The interior angles of a triangle must have a sum of 180°
A triangle will be presented. Find the missing sides.
x=63
Recite the Pythagorean Theorem. Then, state the type(s) of triangle(s) to which it is applicable.
a2+b2=c2; Right Triangle
The following sentences have a grammatical error:
Matthew, whose birthday is tomorrow, wants to throw a party like mines. I threw a summer pool party; I do not think he can do it because it's winter.
The phrase "mines" is grammatically incorrect in this context. The word "Mine" already shows possession when talking about ownership. "Mines" is only grammatically correct when talking about multiple excavation sites.
I am a triangle. None of my sides or angles are congruent, and one of my angles is 91°. As by my interior and exterior, what kind of triangle am I?
I am a Scalene obtuse-angle triangle.
An isosceles triangle is a triangle with two equal angles and sides. "Isosceles" is Greek for what phrase?
"With equal legs"
The measure of each internal angle of an equilateral triangle is equal to ___ degrees.
60
A triangle will be presented. Find the missing side.
12
There are seven continents. Which continent is the farthest North?
Because of Greenland, North America is the farthest continent North.
We discussed six types of triangles. What are those six?
Isosceles, Scalene, Equilateral, Obtuse, Acute, and Right
Can an obtuse angle triangle be equilateral? Why or why not?
No. An obtuse triangle is a triangle that has an angle greater than 90°. In an equilateral triangle, every angle is congruent. If each angle of a triangle is 90°, the interior sum would be 270° instead of 180°.
A figure will be presented. Find the missing angles.
(Hint: use the formula for interior angles)
The missing angles are both 108°.
If the legs of a right triangle are 10 and 24, then three less than half the hypotenuse is...
There's only one country whose flag doesn't have ANY red, white, or blue in it. What country is that?
Jamaica
A triangle will be presented. Define the triangle by its interior and exterior.
(Hint: use the formula for interior angles)
x=18, thus it's a Scalene Right-angle Triangle.
A triangle will be presented. Explain why it follows or violates the properties of a triangle.
The triangle is not equilateral, though the figure states that it is.
____ have interiors that add up to 1,260°.
(Hint: use the formula for interior angles)
Nonagons; a 9-sided polygon.
A triangle will be presented. Find the missing side.
79.2 inches; 6 ft. 7 in.
The U.S. has 50 states. Name at least 30 states.
Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennesse, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming.