Geometry (12/3 and 12/4/2024) - Triangle Review & Circle Intro

Front

What does it mean for two shapes to be similar?

Back

Same shape, but different size.

Front

What is a diameter in a circle?

Back

A diameter is a line segment that passes through the center of the circle and has its endpoints on the circle.

Front

If John walks 6 blocks North and then 8 blocks West, how far is he from the starting point?

Back

10 blocks.

Front

Are the triangles with sides 3, 4, 5 and 6, 8, 10 similar?

Back

Yes.

Front

How do you determine if triangles are similar?

Back

Using AA (Angle-Angle), SAS (Side-Angle-Side), or SSS (Side-Side-Side) criteria.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

What is the relationship between the angles in a triangle?

Back

The sum of the interior angles in a triangle is always 180 degrees.

Front

What is a chord in a circle?

Back

A chord is a line segment with both endpoints on the circle.

Front

What is the circumference of a circle?

Back

Circumference = 2 * π * radius.