Common MATHEMATICAL PRACTICES
ANALYZE. LOOK FOR STRUCTURE • PRECISION
MATICAL PRACTICES
MATHEMATICAL
PRACTICE
MLA PRECTACLEAL 3 Verify the Reasoning of Others
Carina draws this diagram to show that 8 X 30 = 210.
Explain her error.
10
+
10
10
+
1

q: 92 degrees

hope i ^-^

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.

where does the z at is it on the x axes or on the y axes any way if it is on the y axes put it horizontally and if it is on the x axes put it vertically