Medians, altitudes and bisectors: name them, and find where they meet

Grade 10 Math Worksheet

NameDate

Circle the best answer, or write your answer on the line.

  1. Milo traces watermelon slice DFH with centroid G on median DQ. DG = (5x − 1) cm and GQ = (2x + 5) cm. How long is DQ, in cm?

  2. Noah traces cheese wedge DFH with centroid G on median DQ. DG = (6x − 12) inches and GQ = (x + 8) inches. How long is DQ, in inches?

  3. Pia leans a ladder on a wall, making right triangle DFH with the right angle at F. Where is the circumcenter of triangle DFH?

    • inside the triangle
    • at the midpoint of the hypotenuse, DH
    • outside the triangle
    • at F, the vertex of the right angle
  4. Ren marks three towns on a map, making triangle DFH with an obtuse angle at F. Where is the circumcenter of triangle DFH?

    • at F, the vertex of the obtuse angle
    • outside the triangle
    • inside the triangle
    • at the midpoint of the longest side, DH
  5. Tala draws the side of a ramp as right triangle DFH with the right angle at F. Where is the orthocenter of triangle DFH?

    • inside the triangle
    • at F, the vertex of the right angle
    • at the midpoint of the hypotenuse, DH
    • outside the triangle
  6. Zee draws the front of a wide tent as triangle DFH with an obtuse angle at F. Where is the incenter of triangle DFH?

    • at F, the vertex of the obtuse angle
    • outside the triangle
    • at the midpoint of the longest side, DH
    • inside the triangle
  7. Ari marks three towns on a grid map: D(1, 2), F(7, 4) and H(4, 9). What are the coordinates of the centroid of triangle DFH?

  8. Bo plans three park lamps on a grid: D(2, 1), F(8, 3) and H(5, 11). What are the coordinates of the centroid of triangle DFH?

  9. Esme plots three classrooms on a grid map of the school: D(0, 3), F(6, 0) and H(9, 9). What are the coordinates of the centroid of triangle DFH?

  10. Jun draws triangle DFH on grid paper: D(3, 6), F(10, 2) and H(5, 4). What are the coordinates of the centroid of triangle DFH?

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Medians, altitudes and bisectors: name them, and find where they meet

Answer Key - Grade 10 Math Worksheet

Circle the best answer, or write your answer on the line.

  1. Milo traces watermelon slice DFH with centroid G on median DQ. DG = (5x − 1) cm and GQ = (2x + 5) cm. How long is DQ, in cm?

    81
  2. Noah traces cheese wedge DFH with centroid G on median DQ. DG = (6x − 12) inches and GQ = (x + 8) inches. How long is DQ, in inches?

    45
  3. Pia leans a ladder on a wall, making right triangle DFH with the right angle at F. Where is the circumcenter of triangle DFH?

    • inside the triangle
    • at the midpoint of the hypotenuse, DH
    • outside the triangle
    • at F, the vertex of the right angle
  4. Ren marks three towns on a map, making triangle DFH with an obtuse angle at F. Where is the circumcenter of triangle DFH?

    • at F, the vertex of the obtuse angle
    • outside the triangle
    • inside the triangle
    • at the midpoint of the longest side, DH
  5. Tala draws the side of a ramp as right triangle DFH with the right angle at F. Where is the orthocenter of triangle DFH?

    • inside the triangle
    • at F, the vertex of the right angle
    • at the midpoint of the hypotenuse, DH
    • outside the triangle
  6. Zee draws the front of a wide tent as triangle DFH with an obtuse angle at F. Where is the incenter of triangle DFH?

    • at F, the vertex of the obtuse angle
    • outside the triangle
    • at the midpoint of the longest side, DH
    • inside the triangle
  7. Ari marks three towns on a grid map: D(1, 2), F(7, 4) and H(4, 9). What are the coordinates of the centroid of triangle DFH?

    (4, 5)
  8. Bo plans three park lamps on a grid: D(2, 1), F(8, 3) and H(5, 11). What are the coordinates of the centroid of triangle DFH?

    (5, 5)
  9. Esme plots three classrooms on a grid map of the school: D(0, 3), F(6, 0) and H(9, 9). What are the coordinates of the centroid of triangle DFH?

    (5, 4)
  10. Jun draws triangle DFH on grid paper: D(3, 6), F(10, 2) and H(5, 4). What are the coordinates of the centroid of triangle DFH?

    (6, 4)