Name Johannes Chinondo
Name Johannes Chinondo
Student no 45393796
Assignment 03
Subject GGH2603
Unique no 578524
QUESTION 1
1.1 .Straight line distance between the Broham train station and trig beacon is calculated by measuring the map distance which is 9cm then convert it using the scale which is roughly 2degrees 30minutes in actual distance(2⁰30′)
1.2 .Area of a rectangle is L multiplied by W (L×w)which is 12cm ×6.5cm
We convert first both length and width to real distance
Which is 12÷ (1×25000) ×6.5÷ (1×25000)
= (12×25000)× (6.5×25000)
=300 000 ×162 500
=487500m
=4875square kilometre
1.3 .The absolute location of a place is the immediate position which can be figured by the use of numbers to accurately state the position of a place.
In this question the spot height 873 in block j7 is located at 30⁰58′E 25⁰29′S
1.4.4⁰45′
1.5 first you draw a line to link spot height 1027 in block C6 and trig beacon 97 in block C5 and then draw a slanting line which join beacon 97 and the straight line in the foot of the spot height 1027 gradient =rise⁄step=3.5cm⁄2cm=1.75cm
The gradient between spot height 1027 and trig beacon 97 = 1.75cm
Question 2
2.1 scale of the aerial photographs =focal length⁄ flight altitude=91.2mm⁄4900000mm=
2.2 To find the actual height of the warehouse building in meters, one needs to convert all the measurements given into meters and for us to able to convert these we need a scale first
Formulafor scale = focal length⁄ flight altitude which is =95.3mm⁄5180m
We convert 5180 to mm which is =5180000mm
Then reduce the proportion to the list that is 1⁄50000
The scale =1⁄50000
Then we convert the distance between principal point and the summit
That is 108.7
Student no 45393796
Assignment 03
Subject GGH2603
Unique no 578524
QUESTION 1
1.1 .Straight line distance between the Broham train station and trig beacon is calculated by measuring the map distance which is 9cm then convert it using the scale which is roughly 2degrees 30minutes in actual distance(2⁰30′)
1.2 .Area of a rectangle is L multiplied by W (L×w)which is 12cm ×6.5cm
We convert first both length and width to real distance
Which is 12÷ (1×25000) ×6.5÷ (1×25000)
= (12×25000)× (6.5×25000)
=300 000 ×162 500
=487500m
=4875square kilometre
1.3 .The absolute location of a place is the immediate position which can be figured by the use of numbers to accurately state the position of a place.
In this question the spot height 873 in block j7 is located at 30⁰58′E 25⁰29′S
1.4.4⁰45′
1.5 first you draw a line to link spot height 1027 in block C6 and trig beacon 97 in block C5 and then draw a slanting line which join beacon 97 and the straight line in the foot of the spot height 1027 gradient =rise⁄step=3.5cm⁄2cm=1.75cm
The gradient between spot height 1027 and trig beacon 97 = 1.75cm
Question 2
2.1 scale of the aerial photographs =focal length⁄ flight altitude=91.2mm⁄4900000mm=
2.2 To find the actual height of the warehouse building in meters, one needs to convert all the measurements given into meters and for us to able to convert these we need a scale first
Formulafor scale = focal length⁄ flight altitude which is =95.3mm⁄5180m
We convert 5180 to mm which is =5180000mm
Then reduce the proportion to the list that is 1⁄50000
The scale =1⁄50000
Then we convert the distance between principal point and the summit
That is 108.7