EmSAT EmSAT Mathematics 5

Question 1

What is the formula for the area of a circle?

Accepted Answer

πr²

Answer

πr

Answer

2πr

Answer

2πr²

Question 2

In a right triangle, if one leg is 3 and the other is 4, what is the hypotenuse?

Accepted Answer

5

Answer

7

Answer

6

Answer

25

Question 3

What is sin(30°)?

Accepted Answer

1/2

Answer

√3/2

Answer

√2/2

Answer

1

Question 4

What does the cosine rule state?

Accepted Answer

c² = a² + b² − 2ab·cos(C)

Answer

c² = a² + b²

Answer

c = a·cos(C)

Answer

sin(A)/a = sin(B)/b

Question 5

Convert 90° to radians.

Accepted Answer

π/2

Answer

π

Answer

π/4

Answer

2π

Question 6

What is tan(45°)?

Accepted Answer

1

Answer

0

Answer

√3

Answer

1/2