Show how to solve the problem 378 times 6 using place value with regrouping. explain how you knew when to regroup

300*6 + 70*6 + 8*6

1800 + 420 + 48

2268

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

d. corresponding side lengths in similar triangles are proportional in length.

step-by-step explanation: