Question

What additional information is needed to verify that the triangles are congruent by the side-angle-side congruence postulate?

Answer 1

well, what do we know they have in common so far?

Answer 2

angles a and c or congruent

Answer 3

yes, and the side A to C is common between them right?

Answer 4

we have a side, and an angle, we are missing ..... well considering its called side angle side ..... what would you propose is missing?

Answer 5

i think so? i dont really understand this..

Answer 6

youre thinking to hard then .... its pretty self explanatory if you just let it mean what is says. mathmatickers arent very creative in naming things

Answer 7

can you explain it to me

Answer 8

now, give me a thought as to what the side angle side would tell us we need thats missing to provr these are the same size and shape

Answer 9

uhh the size on the angles?

Answer 10

the angles are equal, no need to know there size.

side angle side

the name of the postulate is:

side angle side

its named that becasue it uses those parts, in that order

side angle side

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we know they share a side

side angle side
^^^
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we know they have equal angles

side angle side
^^^ ^^^^

what are we missing ???

Answer 11

the measurement of the last side

Answer 12

correct, now lets determine which side that should be, the name tells us the parts, and the order that we want them in

side, angle, side

Answer 13

so, we need to know if side(AB) is equal to side(CD) do you agree?

Answer 14

yes