Chapter 3 : Pythagoras' Theorem and Trigonometry Quiz 1

Pythagoras' Theorem

Which one of the following is correct ?

• $a^2=b^2+c^2$

• $b^2=a^2+c^2$

• $c^2=a^2+b^2$

Pythagoras' Theorem

Which of the following is correct in order to find the length BC?

• $12^2=15^2+BC^2$

• $BC^2=12^2+15^2$

• $15^2=12^2+BC^2$

Pythagoras' Theorem

Which of the following is correct in order to find the length PQ?

•  $2^2=5^2+PQ^2$ 

•  $PQ^2=2^2+5^2$ 

•  $5^2=2^2+PQ^2$ 

Pythagoras' Theorem

Which of the following is correct in order to find the length UW?

•  $9^2=6^2+UW^2$ 

•  $UW^2=9^2+6^2$ 

•  $6^2=9^2+UW^2$ 

 $Sin\ \theta\ =$ 

•  $\frac{Opposite}{Adjacent}$  

•  $\frac{Adjacent}{Hypotenuse}$  

•  $\frac{Opposite}{Hypotenuse}$  

 $Cos\ \theta=$  

•  $\frac{Opposite}{Hypotenuse}$  

•  $\frac{Adjacent}{Hypotenuse}$  

•  $\frac{Opposite}{Adjacent}$  

 $Tan\ \theta\ =$  

•  $\frac{Opposite}{Hypotenuse}$  

•  $\frac{Adjacent}{Hypotenuse}$  

•  $\frac{Opposite}{Adjacent}$  

Which of the following mnemonics are correct for the Trigonometric Ratios?

Sine, Cosine and Tangent

• TOH, CAH, SOH

• TOA, CAO, SOH

• TOA, CAH, SOH

• TOH, CAH , SAO

 $Sin\ \theta\ =$  

•  $\frac{PQ}{PR}$  

•  $\frac{QR}{PR}$  

•  $\frac{QR}{PQ}$  

 $Cos\ \theta\ =$  

•  $\frac{PQ}{PR}$  

•  $\frac{QR}{PR}$  

•  $\frac{QR}{PQ}$