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Actually it is circular but usually the sun needs to be quite low in the sky for the angle of the sunbeams hitting the raindrops to be suitable to create a rainbow visible from the ground. But, when that happens, a part of the rainbow is cut-off by the horizon and so it appears semicircular.
Full circles are rare but have been seen/photographed.
What else can I help you with?
What is the base shape of a semi - circle have?
semi-circle
What do you call a semi circle 3D shape?
A 3D semi circle
Why is the shape of a rainbow an arc?
In reality, the shape of rainbow is a circle. The center of the circle is an imaginary line between the center of the sun and the head of the viewer.
Is a semi-circle a regular shape?
No it is a irregular shape
Why the rainbow is always a semi circle?
Because the earth blocks you from seeing the full circle. You can use a misting garden hose to make a rainbow, and you'll see it's a full circle.
What is the base shape of a semi - circle have?
semi-circle
What do you call a semi circle 3D shape?
A 3D semi circle
Why rainbow seems to be round high up in the air?
A rainbow appears as a circle when viewed from an airplane because the observer is seeing the full circular arc of the rainbow due to their high altitude. The shape of a rainbow is actually a full circle, but when viewed from the ground, the bottom half is usually blocked by the horizon. So, from higher altitudes, the full circle can be seen.
Can a rainbow be made in a different shape?
No. A rainbow is always round. On the ground, the bottom part is hidden, but in the sky, like from the view of a flying airplane, it can be seen as a round shape. Check the link below for more information:
How many dimensions does a semi circle have?
A semi-circle is a two dimensional shape.
Why is the shape of a rainbow an arc?
In reality, the shape of rainbow is a circle. The center of the circle is an imaginary line between the center of the sun and the head of the viewer.
Is a semi-circle a regular shape?
No it is a irregular shape
What shape are rainbows?
If you are in a airplane rainbows are actually a circle shape,but from our view it is semi-circle.
Is a Semi-circle a 2D shape?
Yes.
Why the rainbow is always a semi circle?
Because the earth blocks you from seeing the full circle. You can use a misting garden hose to make a rainbow, and you'll see it's a full circle.
Why is rainbow formed in the sky in the shape of arc?
a rainbow is not shaped like a arc its a circle
Shape that has not got equal sides?
semi circle
