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Geometry Basic Questions

Test your basics of geometry

1. 1

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

   • 90°
   • 180°
   • 270°
   • 360°
2. 2

   What is the area of a rectangle with length 8 and width 5?

   • 13
   • 26
   • 40
   • 80
3. 3

   What is the perimeter of a square with side 6?

   • 12
   • 18
   • 24
   • 36
4. 4

   What is the area of a triangle with base 10 and height 6?

   • 20
   • 30
   • 40
   • 60
5. 5

   What is the circumference of a circle?

   • πr²
   • 2πr
   • πd²
   • r²
6. 6

   What is the area of a circle with radius r?

   • 2πr
   • πr²
   • πd
   • r³
7. 7

   What is the Pythagorean theorem?

   • a+b=c
   • a²+b²=c²
   • a²-b²=c²
   • ab=c²
8. 8

   What is the hypotenuse of a right triangle with legs 3 and 4?

   • 5
   • 6
   • 7
   • 8
9. 9

   What type of angle measures 90°?

   • Acute
   • Right
   • Obtuse
   • Straight
10. 10

    What type of angle is greater than 90° but less than 180°?

    • Acute
    • Right
    • Obtuse
    • Reflex
11. 11

    What is a straight angle?

    • 45°
    • 90°
    • 180°
    • 360°
12. 12

    How many sides does a hexagon have?

    • 5
    • 6
    • 7
    • 8
13. 13

    How many sides does an octagon have?

    • 6
    • 7
    • 8
    • 10
14. 14

    What is the volume of a rectangular prism?

    • lwh
    • 2πr
    • πr²
    • 1/2bh
15. 15

    What is the volume of a cube with side 3?

    • 9
    • 18
    • 27
    • 36
16. 16

    What is the distance between (0,0) and (3,4)?

    • 3
    • 4
    • 5
    • 7
17. 17

    What is the slope between (1,2) and (3,6)?

    • 1
    • 2
    • 3
    • 4
18. 18

    What is the sum of exterior angles of any convex polygon?

    • 90°
    • 180°
    • 270°
    • 360°
19. 19

    What is a polygon with all sides and angles equal?

    • Scalene
    • Regular polygon
    • Irregular polygon
    • Trapezoid
20. 20

    What is the area of a parallelogram?

    • base × height
    • 1/2 base × height
    • πr²
    • side²
21. 21

    What is the area of a trapezoid?

    • (a+b)h/2
    • ab
    • 2πr
    • r²
22. 22

    Similar figures have...

    • Equal sizes only
    • Equal corresponding angles and proportional sides
    • Equal areas only
    • Equal perimeters only
23. 23

    What is the measure of each angle in an equilateral triangle?

    • 45°
    • 60°
    • 90°
    • 120°
24. 24

    What is the radius of a circle with diameter 20?

    • 5
    • 10
    • 20
    • 40