Midterm Review 5 & 9 (M)

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length.

Front

How do you calculate the length of a side in a triangle using coordinates?

Back

Use the distance formula: d = √((x2 - x1)² + (y2 - y1)²).

Front

What is the Pythagorean Theorem?

Back

In a right triangle, the square of the length of the hypotenuse (c) is equal to the sum of the squares of the lengths of the other two sides (a and b): a² + b² = c².

Front

What type of triangle does the Pythagorean Theorem apply to?

Back

The Pythagorean Theorem applies only to right triangles.

Front

If a triangle has sides of lengths 4.1, 3.6, and 4.5, how would you classify it?

Back

It is an isosceles triangle because two sides are equal.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle with all sides of different lengths.

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle where all three sides are of equal length.

Front

How do you find the perimeter of a triangle?

Back

Add the lengths of all three sides: Perimeter = a + b + c.

Front

What is the definition of a right triangle?

Back

A right triangle is a triangle that has one angle measuring 90 degrees.