Math essentials flashcards

Question 1

What do the angles of a triangle add up to?

Accepted Answer

180°.

Question 2

How do you find the area of a rectangle?

Accepted Answer

length × width

Question 3

What is the area of a circle with radius r?

Accepted Answer

π × r²

Question 4

What does the Pythagorean theorem say about a right triangle?

Accepted Answer

a² + b² = c², where c is the longest side.

Question 5

What is the square root of 144?

Accepted Answer

12.

Question 6

What is 15% of 200?

Accepted Answer

30.

Question 7

What are the first five prime numbers?

Accepted Answer

2, 3, 5, 7 and 11.

Question 8

What is 1/2 as a percentage?

Accepted Answer

50%.

Question 9

What is the value of π to two decimal places?

Accepted Answer

3.14.

Question 10

What is 9²?

Accepted Answer

81.

The cards