What are concentric triangles?

What are concentric triangles?

By Euler’s theorem in geometry on the distance between the circumcenter and incenter of a triangle, two concentric circles (with that distance being zero) are the circumcircle and incircle of a triangle if and only if the radius of one is twice the radius of the other, in which case the triangle is equilateral.

What are concentric circles explain with diagram?

Concentric circles are circles with a common center. The region between two concentric circles of different radii is called an annulus. Any two circles can be made concentric by inversion by picking the inversion center as one of the limiting points.

How do you draw two concentric circles?

Following are the steps to draw tangents on the given circle:

1. Draw a circle of 3 cm radius with centre O on the given plane.
2. Draw a circle of 5 cm radius, taking O as its centre. Locate a point P on this circle and join OP.
3. Bisect OP.
4. Taking M as its centre and MO as its radius, draw a circle.
5. Join PQ and PR.

What are two concentric circles?

Two or more circles which have the same center point. The region between two concentric circles is called an annulus.

Which is the concentric ring?

The concentric ring sign is a pathognomonic sign for a subacute hematoma on MRI. A subacute hematoma may show three characteristic layers of signal intensity: a thin peripheral rim of low signal intensity on all pulse sequences corresponding to hemosiderin.

What is another word for concentric?

In this page you can discover 12 synonyms, antonyms, idiomatic expressions, and related words for concentric, like: homocentric, concentrical, eccentric, polygonal, rectangular, triangular, pentagonal, hexagonal, cylindrical, semi-circular and rectilinear.

Can concentric circles have the same diameter?

Yes, they do. They are two or more circles that have the same center, but different radii. Step-by-step explanation: Concentric circles are simply circles that all have the same center.

How do you draw a radius of a circle with 4 cm?

1. First we will take a point O on the sheet and draw a circle of radius OA=4 cm.
2. Now make OA to B such that OA=AB=4 cm.
3. Taking A as the centre draws a circle of radius AO=AB=4 cm. Now we suppose that it cuts the circle drawn in step 1 at P and Q.
4. Now we will join BP and BQ to get required tangents.