Help if you can!! I really need some good grades or I will fail this and that wont help anything.
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Answer:
P=648
Step-by-step explanation:
The sum of the bottom interior angles is equal to the sum of the given exterior angles at the apex. (Both sums differ from 180° by the size of the interior apex angle.)
The angle labeled x is 51°.
The angle labeled x is 51°.