Which best explains why all equilateral triangles are similar?
© All equilateral triangles can be mapped onto each other using dilations.
All equilateral triangles can be mapped onto each other using rigid transformations.
All equilateral triangles can be mapped onto each other using combinations of dilations and rigid transformations
All equilateral triangles are congruent and therefore similar, with side lengths in a 1:1 ratio.

Which best explains why

Which best explains whyall equilateral triangles are similar?

○All equilateral triangles are congruent and therefore similar, with side lengths in a 1:1 ratio

Hope this helps- have a good day bro cya)

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."