Grade 8 end of year activity

geometry

100

One side of a right triangle is missing. The first side is 4cm. The second is 6cm. What is the length of the hypotenuse?

Show your work

index: a² + b² = c²

4² + 6² = c²

16 + 36 = c²

√52 = c

c = 7.21

200

A circle have a diameter of 6cm.

What is the area of the circle ?

Show your work

3 x 3 x 3.14

A = 28.26

300

A semi-circle  have a diameter of 8cm.

What is the circumference of the circle?

Show your work

8 x 3.14 = 25.12

25.12 / 2 = 12.56 

12.56 + 8 = 20.56

400

How do you call the perimeter of a circle?

Circumference

500

How do you calculate the circumference of a circle?

Pi = 3.14

3.14 * D

Angle

100

How many degrees have a straight line?

180 degrees

200

A circle is divide by three: a= 60^o

b= 80^o 

and c is unknown, what angle is c?

c = 220 degrees

300

How many degrees have a triangle?

180 degrees

400

What is total angle of exterior angle of square?

360 degrees

500

How many degrees does Decagon have?

1440 degrees

Barbie

100

Is it girl or boy?

both

200

when did barbie came?

March 9, 1959

300

Where does barbie come from?

New York, USA

400

Who did barbie date with?

Kenneth Carson

500

Who loves barbie the most?

Mr. Jonas (Ross Jonas)

World

100

What is capital city of Japan?

Tokyo

200

What is capital city of France?

Paris

300

How many continent does the world have?

6 continents

400

How many countries in the world?

195 countries

500

How many city in the world

4,416 cities

Kpop

100

Which group have made the song DNA?

BTS

200

In twice what is the name of leader?

Jihyo

300

Where does Kpop come from?

South Korea

400

Who's song is the "gangnam style"

PSY

500

How many kpop groups are there? (active bands)

119 active bands