If for triangle ABC and triangle PQR, the correspondence BCA to QRP is a congruence, which of the following are true.
1 answer:
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Answer:
A
Step-by-step explanation:
∠ AOC = 90° and
∠ AOB + ∠ BOC = ∠ AOC , that is
x + 8 + 2x = 90
3x + 8 = 90 ( subtract 8 from both sides )
3x = 82 ( divide both sides by 3 )
x =
Then
∠ BOC = 2x = 2 × =
≈ 54.67° ( to 2 dec. places )
