Arc and Resize

[burnsmicro]

I wish to draw progressively larger concentric arcs to depict radio waves.

I have looked everywhere and I cannot find out how to draw a simple arc.

I can approximate an arc with a Bezier curve. But I cannot find out how to shrink/enlarge the curve to draw the progressively larger concentric arcs to depict radio waves.

I would have expected a Resize option under the Draw -> Effects icon, together with Flip and Rotate.

[floris_v]

There's an Arc tool in the Draw toolbar - click the icon directly to the left of the smily icon (Basic shapes) and select the pie with a one quarter piece cut out of it, draw it, then select one of the endpoints and drag it to where-ever you want to modify the arc length. You can set the background color to white.
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