Warm Up M2T1 L2 Day 3

Front

What is an equilateral triangle?

Back

A triangle with all three sides of equal length and all three angles equal to 60 degrees.

Front

What is a right isosceles triangle?

Back

A triangle with two equal sides and one right angle (90 degrees).

Front

What is the triangle inequality theorem?

Back

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Front

Can the sides 9, 7, and 2 form a triangle?

Back

No, because 9 + 7 is not greater than 2.

Front

What is an obtuse triangle?

Back

A triangle with one angle greater than 90 degrees.

Front

What is a scalene triangle?

Back

A triangle with all sides of different lengths and all angles of different measures.

Front

How do you classify triangles based on angles?

Back

Triangles can be classified as acute (all angles < 90°), right (one angle = 90°), or obtuse (one angle > 90°).

Front

What is the range of possible measures for the third side of a triangle with sides 12 and 7?

Back

5 < x < 19.

Front

What is an acute triangle?

Back

A triangle where all three angles are less than 90 degrees.

Front

What is the formula to find the area of a triangle?

Back

Area = 1/2 * base * height.