Understanding Slope Angles

What are the two ways slope angles can be expressed?

• As a percentage or a ratio

• As a ratio or a fraction

• As an angle in degrees or a percentage

• As a decimal or a fraction

What two pieces of information are needed to calculate the slope angle in degrees?

• Horizontal distance and time taken

• Height difference and time taken

• Height difference and speed

• Horizontal distance and height difference

Why is it important to express horizontal distance and height in the same unit?

• To ensure accuracy in the slope angle calculation

• To make the calculation faster

• To avoid using a calculator

• To simplify the map reading process

How do you calculate the slope angle in degrees using a scientific calculator?

• Add the height difference to the horizontal distance and use the inverse tangent function

• Multiply the height difference by the horizontal distance

• Use the inverse tangent function on the height difference

• Divide the height difference by the horizontal distance and use the inverse tangent function

How is the slope angle converted from a decimal to a percentage?

• Add 100 to the decimal

• Divide the decimal by 100

• Multiply the decimal by 100

• Multiply the decimal by 10