n B M A An obtuse angle is greater than 900

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Presentation transcript:

1800 250 900 1450 n B M A An obtuse angle is greater than 900 An acute angle is less than 900 A right angle is exactly 900 An obtuse angle is greater than 900 A straight angle is exactly 1800 250 900 1450 segment bisector passes through the midpoint of a line segment n B M A passes through the midpoint of a line segment

<VWX ≌ <PQR <PQR ≌ <VWX 16m +12 = 44 Or 16m = 32 Subtraction property of equality 16m +12 = 44 Or 16m = 32 Division property of equality <VWX ≌ <PQR <PQR ≌ <VWX

m<2 = m<4 Addition property of = Substitution property of = Transitive property of equality

W+4 = 7w-2 given V=w given Step #1: Be sure to put all your given statements down. Notice that what you need to prove and one of your given statements give you a hint as to what you need to do next. Step #2: Start solving the first given statement for w..

w +4 -4 = 7w -2 -4 subtraction property of equality W+4 = 7w-2 given V=w given w +4 -4 = 7w -2 -4 subtraction property of equality Step #1: Be sure to put all your given statements down. Step #2: Start solving the first given statement for w. There are a few ways to do this. Subtract 4 from both sides

w = 7w -6 subtraction property of equality W+4 = 7w-2 given V=w given w = 7w -6 subtraction property of equality -6w = -6 subtraction property of equality Step #1: Be sure to put all your given statements down. Step #2: Start solving the first given statement for w. There are a few ways to do this. Subtract 4 from both sides Step #3: isolate the unknown by subtracting 7w

w = 7w -6 subtraction property of equality W+4 = 7w-2 given V=w given w = 7w -6 subtraction property of equality -6w = -6 subtraction property of equality W=1 division prop. Of equality Step #1: Be sure to put all your given statements down. Step #2: Start solving the first given statement for w. There are a few ways to do this. Subtract 4 from both sides Step #3: isolate the unknown by subtracting 7w Step #4 divide by -6 to isolate w.

w = 7w -6 subtraction property of equality W+4 = 7w-2 given V=w given w = 7w -6 subtraction property of equality -6w = -6 subtraction property of equality W=1 division prop. Of equality V=1 Transitive property of equality (2,5) Step #1: Be sure to put all your given statements down. Step #2: Start solving the first given statement for w. There are a few ways to do this. Subtract 4 from both sides Step #3: isolate the unknown by subtracting 7w Step #4 divide by -6 to isolate w. Step #5: since v=w and w=1 we can say that v=1