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Why do similar triangles have the same trigonometric ratios?
Trigonometric ratios are characteristics of angles, not of lengths. And, by definition, the corresponding angles an similar triangles have the same measures.
What are trig ratios?
Trig ratios or to give them their proper name are trigonometrical rations applicable to right angle triangles and they are tangent ratio, sine ratio and cosine ratio.
Can trig ratios only be used on right triangles?
Yes
How was trigonometry discovered?
Ancient Egyptian and Babylonian mathematicians lacked the concept of an angle measure, but they studied the ratios of the sides of similar triangles and discovered some properties of these ratios. The ancient Nubians used a similar methodology.
What is the sine ratios of 20 degrees angle?
sin(20) = 0.3420 (approx).
In what negative direction is the project heading?
The project is heading in a negative direction.
If the net force of an object is negative direction what will be the direction resulting acceleration be?
If the net force of an object is in the negative direction, the resulting acceleration will also be in the negative direction. This means that the object will be accelerating in the opposite direction of the applied force.
Why dispacement can be negative?
When a body covers a displacement in the opposite direction of our reference direction then displacement will be negative.
When does latitude become negative?
If you define one direction (for example, north) as positive, then the opposite direction is negative.
Can a speed of a body be negative?
The 'speed' of a body cannot be negative. But if you are stating the 'velocity' then it can be negative. Negative velocity means it is going opposite to the direction that you decided to call the positive direction.
Is the velocity negative in this scenario?
In this scenario, the velocity is negative if the object is moving in the opposite direction of the positive direction.
How can an object have negative momentum?
An object can have negative momentum if it is moving in the opposite direction to a chosen positive direction. Momentum is a vector quantity that considers both the mass and velocity of an object, so moving in the opposite direction as chosen positive direction can result in negative momentum.
Can negative one half be a rational number?
Yes - all numbers that can be written as ratios, even negative numbers, are rational numbers.
Can both the velocity and acceleration be negative?
Yes, both velocity and acceleration can be negative. Negative velocity indicates movement in the opposite direction of a chosen positive direction, while negative acceleration indicates a decrease in velocity in the chosen positive direction.
Why is velocity negative in certain situations?
Velocity can be negative in certain situations when an object is moving in the opposite direction of the chosen positive direction. This means that the object is moving in the negative direction along the chosen axis, resulting in a negative velocity value.
Can acceleration ever be negative?
Yes, acceleration can be negative when an object is slowing down or changing direction in the opposite direction of its current motion. Negative acceleration is often referred to as deceleration.
Can current be negative?
A negative current only signifies direction.
