Math 7 EXT Weekly Flashcardizz #18 2024-25

Front

What are vertical angles?

Back

Angles that are opposite of each other when lines intersect.

Front

How do you find the scale factor?

Back

Use the formula: new measure/old measure.

Front

Solve for x: 2x + 3(5x - 7) = 47

Back

x = 4

Front

What is the sum of angles in a triangle?

Back

180°.

Front

What are complementary angles?

Back

Two angles that add up to 90°.

Front

What are supplementary angles?

Back

Two angles that add up to 180°.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What is the formula for the circumference of a circle?

Back

Circumference = 2πr, where r is the radius.

Front

What is the Pythagorean theorem?

Back

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

Front

What is a scale factor?

Back

A number that scales, or multiplies, some quantity.