Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

As shown in the photo above, Light Variations merge with white and dark variations merge with black or a darker color. You can change the Direction and Angle of the Gradient. You can also ...

You need both a point and the gradient to find its equation. You are usually given the point - it's where the tangent meets the circle. To find the gradient use the fact that the tangent is ...