///Field Survey & Notebook Entries
Field Survey & Notebook Entries2018-12-02T16:54:23+10:00

Maths Made Easy Forums Standard Measurement Field Survey & Notebook Entries

  • Author

    Posts

  • AdminAdmin

    Keymaster
    Post count: 582

    g_mea_0012a. Draw a field diagram of the block of land represented by the notebook entry.
    b. Calculate the area of this block of land.
    a. g_mea_0013
    draw the offsets on the left and right, including each measurement
    going up, starting at 30,
    then (60 – 30) = 30
    (75 – 60) = 15
    (95 – 75) = 20
    b. A1 = ½ × 95 × 40
    = 1900
    find the area of the triangle on the right: base = 95 and height = 40
    A2 = ½ × 70 × 20
    = 700
    Area of the top triangle on the top left: base = 70 and height = 20
    A3 = ½ × 45 × (70 + 36)
    = 2385
    Area of trapezium with height 45 and parallel sides 70 and 36
    A4 = ½ × 30 × 36
    = 540
    Area of bottom triangle on the left: base = 30 and height 36
    A = 1900 + 700 + 2385 + 540
    = 5525m2
    add to find the total area

You must be logged in to reply to this topic.

Show Buttons
Hide Buttons