8 I competition

What is the sum of the interior angles of a pentagon?

• 
  
  
  
  

• • A) 360°

• • B) 540°

• • C) 720°

• • D) 900°

If x+3=9 , what is 2x+1?

• Options:
  
  
  

• • A) 11

• • B) 12

• • 
    C) 13

• • D) 15

Find the slope of the line passing through points (2, 3) and (4, 7).

• 
  
  
  
  

• • A) 2

• • B) 3

• • C) 4

• • D) 5

. A number is divisible by both 3 and 5. Which of the following could it be?

• • A) 15

• • B) 30

• • C) 45

• • D) All of the above

Find the area of a square with side length 15 cm.

• 
  
  
  
  

• • A) 150 cm²

• • B) 200 cm²

• • C) 225 cm²

• • D) 300 cm²

• 
  
  
  
  

• • A) 17

• • B) 18

• • C) 19

• • D) 20

A car travels at a speed of 80 km/h for 3 hours. How far does it travel?

• 
  
  
  
  

• • A) 240 km

• • B) 200 km

• • C) 160 km

• • D) 120 km

Find the greatest common divisor (GCD) of 36 and 60.

• Options:
  
  
  
  

• • A) 6

• • B) 9

• • C) 12

• • D) 18

How many faces does a cube have?

• • A) 4

• • B) 6

• • C) 8

• • D) 12

A triangle has angles measuring 45°, 45°, and 90°. What type of triangle is it?

• 
  
  
  
  

• • A) Scalene

• • B) Isosceles

• • C) Equilateral

• • D) None of these