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Please help, I’m being timer

Please help, I’m being timer-example-1

2 Answers

4 votes

Answer: ∠BDA = 21; CB = 30

have:

sin ∠BDC =
(4x+6)/(BD)

sin ∠ADB =
(7x-12)/(BD)

because ∠BDC = ∠ADB => sin ∠BDC = sin ∠ADB

=>
(4x+6)/(BD)=(7x-12)/(BD)

=> 4x + 6 = 7x -12

<=> 3x = 18

<=> x = 6 => CB = 4.6 + 6 = 30

Explanation:

User Flo Edelmann
by
9.1k points
6 votes

Answer:

CB=18

And the measure of angle BDA is 21 degrees

Explanation:

User James Elderfield
by
8.2k points

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