2 years ago

Determine whether the triangles are congruent by sss sas asa aas or hl

Mathematics

1 answer:

Blababa [14]2 years ago

7 0

AAS.
The vertical angle.
The marked angle.
And the marked side.

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Step-by-step explanation:

$Let \ a \ - adults, \ c - children;\\c + a = 450\\0.75c + 2a = 600|\cdot 4\\3c + 8a = 2400;\\\\c + a = 450|\cdot(-3)\\3c + 8a = 2400\\-3c -3a = -1350\\5a = 1050 => a = 210, c = 450 -210 = 340.$

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