Jana ran the first 3 1/2 miles of a 5-mile race in 1/3 hour what was her average rate, in miles per hour, for the first part of the race?

dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.

central angle of a triangle has the same measure as its intercepted arc.

step-by-step explanation: