Suppose that m∠a = m∠d. which other fact would guarantee that the triangles are similar? a) ab de = cb fe b) m∠c = m∠f c) m∠a + m∠b + m∠c = 180° d) 180° - m∠d = m∠e + m∠f

6 on both sides and twelve on the top and the bottom

step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870