<h3>In a linear perspective drawing, orthogonal lines are the diagonal lines that can be drawn along receding parallel lines (or rows of objects) to the vanishing point. These imaginary lines help the artist maintain perspective in their drawings and paintings to ensure a realistic view of the object.</h3><h3 />
In a four-stroke internal combustion engine, the gas vapor/air mixture is pressurized during the compression stroke. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Explanation : Tone is usually produced either by the mixing any color with grey, or by both tinting and shading. It can have various types such as cool and warm tones.