# How to use *Right-angled* in a sentence

This triangle, for the convenience of calculation, we divide into two right-angled triangles.

For example, a pair of equal opposite vortices, moving on a line parallel to a plane boundary, will have a corresponding pair of images, forming a rectangle of vortices, and the path of a vortex will be the Cotes' spiral r sin 20 = 2a, or x-2+y-2=a-2; (io) this is therefore the path of a single vortex in a right-angled corner; and generally.

To say, for instance, that the area of a right-angled triangle is half the area of the rectangle contained by the two sides, is not to say what the area is, but what it is the half of.

In E'; the case of a parallelogram, the equivalent right,, trapezium is a rectangle; in the case of a triangle, Al it is a right-angled triangle.

When hardened in situ its shape is that of a right-angled, triangular prism showing five surfaces - superior, anterior, inferior, posterior and right lateral which represents the base of the prism.

AdvertisementWithin the focus of the object-glass is a right-angled prism of total reflection, which diverts the converging rays from the object-glass at right angles to the axis of the telescope, and permits the observing micrometer n to be mounted in the very convenient position shown in the figure.

It can be shown, for example, that for masonry having a density of 3, water being 1, the figure of minimum section is a right-angled triangle, with the water against its vertical face; while for a greater density the water face must lean towards the water, and for a less density away from the water, so that the water may lie upon it.

By adopting right-angled reflectionprisms above the eyepiece he completely erected the image.

The pitch is followed by a further 3m descent to a rift-like passage forming two right-angled bends.

Both Mk1 and Mk2 intercoms will accept headsets and/or helmets with either straight or

**right angled**jack plugs.AdvertisementThey use sine, cosine and tangent in right-angled triangles when solving problems in two dimensions.

The triangle was a right-angled triangle with the longest runway being aligned with the main direction of wind for the area.

Menaechmus discussed three species of cones (distinguished by the magnitude of the vertical angle as obtuse-angled, right-angled and acuteangled), and the only section he treated was that made by a plane perpendicular to a generator of the cone; according to the species of the cone, he obtained the curves now known as the hyperbola, parabola and ellipse.

Alas for us, after a few right-angled bends, the stream sank into the floor, as did the roof.

A square wave is a voltage or a current change in which the waveform has square, i.e. right-angled, corners.

AdvertisementHere the lane just stops and cyclists are invited to make a right-angled turn onto a path off to the left.