Year 8 Jeopardy

Pythagoras

100

Pythagoras Theorem only works on what type of triangles?

Right Angled Triangles

200

Is {6, 8, 10} a Pythagorean Triad?

Yes

300

Find the length of the hypotenuse if the two shorter sides have lengths 8cm and 15cm.

Hypotenuse = 17cm

400

Find the length of a short side, if the hypotenuse is 2.5cm and the short side is 1.5cm.

2cm

500

Find the perimeter of a right-angled triangle, if the hypotenuse 10cm and a short side is 8cm.

The other short side is 6cm.

Therefore: P = 6 + 8 + 10 

= 24cm

Algebra (+-)

100

2x + 3x

5x

200

8y - 3y

5y

300

2a² + 4b + 5a²

7a² + 4b

400

18g² - 7g + 3g^{2 -} 4g

21g² - 11g

500

20z - 4y + 6x - 2y + 4z²

4z² + 20z + 6x - 6y

Algebra (x÷)

100

10 x 2x

20x

200

15y ÷ 5

3y

300

2a x -8b

-16ab

400

-14g² ÷ 21g

-2g / 3

500

-2a x 5b x -4a

-40a²b

Algebra (Ex,Fac)

100

When expanding, do we:

A: Multiply the outside term

B: Add the outside term

A: Multiply the outside term

200

Expand the following:

2 ( x + 4 )

2x + 8

300

Factorise the following:

3a + 15

3 ( a + 5 )

400

Expand the following:

4a ( a - 6 )

4a² - 24a

500

Factorise the following:

6x² - 9x

3x ( 2x - 3 )

Trivia

100

How many States are there in Australia?

Six

Northern Territory is not a State! 

200

A wood frog can hold its urine for how long? (in months)

8 months

300

A hippopotamus' milk is what colour?

Pink!

400

The first person convicted of speeding was going how fast? 

8mp/h

or

Approx. 13km/h

500

What two countries do not sell Coca-Cola?

(Name one!)

North Korea and Cuba