Practice Test GeeksAMC12 - American Mathematics Competition 12 Practice Test
← All AMC12 Flashcard Decks

Geometry Flashcards

6 cards from real AMC12 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Geometry flashcards as text

  1. A triangle has vertices (0,0), (4,0), and (0,3). What is its area?

    Answer: 6

    Area=(1/2)*base*height=(1/2)(4)(3)=6.

  2. What is the sum of the interior angles of a hexagon?

    Answer: 720

    The sum is (n-2)*180=(6-2)*180=720 degrees.

  3. A cylinder has radius 3 and height 4. What is its volume?

    Answer: 36pi

    V=pi*r^2*h=pi(9)(4)=36pi.

  4. In a circle with radius 5, a chord is 8 units long. What is the distance from the center to the chord?

    Answer: 3

    Half the chord is 4; distance=sqrt(25-16)=3.

  5. Isosceles triangle ABC has AB=AC=10 and BC=12. What is its area?

    Answer: 48

    The altitude from A to BC is h=sqrt(100-36)=8; Area=(1/2)(12)(8)=48.

  6. The ratio of areas of two similar triangles is 4:9. What is the ratio of their perimeters?

    Answer: 2:3

    The ratio of lengths is sqrt(4/9)=2/3, so perimeters are in ratio 2:3.