Year 9 Pythagoras and Trigonometry Revision

What is the Pythagorean Theorem?

• $a^2\times b^2=c^2$

• $c^2+a^2=b^2$

• $\left(a+b\right)^2=c^2$

• $c^2=a^2+b^2$

• $c^2+b^2=a^2$

The side labelled as "a" is called the

• Opposite

• Adjacent

• Hypotenuse

The side labelled as "c" is called the

• Opposite

• Adjacent

• Hypotenuse

• $\frac{\sin\left(56\degree\right)}{12}$

• $12\times\sin\left(56\degree\right)$

• $\frac{12}{\cos\left(56\degree\right)}$

• $\frac{\cos\left(56\degree\right)}{12}$

• $12\times\cos\left(56\degree\right)$

Which Trig function do you use to find y ?

• Sine

• Cosine

• Tangent

• Pythagoras

Find the size of angle ABC.

Round your answer to 3 significant figures.

• 45.1^o

• 44.9^o

• 35.2^o

• 54.8^o

Tags

CCSS.HSG.SRT.C.8

Find the length of the side BC.

Round your answer to 3 significant figures.

• 8.09cm

• 3.95cm

• 10cm

• 7.57cm

Tags

CCSS.HSG.SRT.C.8

What is the side from point A to point B called? 

• Opposite
• Adjacent
• Hypotenuse

Tags

CCSS.HSG.SRT.C.6

solve for c

• 7
• 9
• 4
• 13

Tags

CCSS.8.G.B.7

The bottom of a ladder leaning against a wall is 1.5 m from the bottom of the wall. The ladder is 5.5 m long. Find how high the top of the ladder is above the ground, correct to one decimal place. 

• 5.2 m
• 5.3 m
• 5.7 m
• 5.8 m

Tags

CCSS.8.G.B.8