Are figures A and B congruent? Figure A Figure B Yes or no
2 answers:
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Answer:
Step-by-step explanation: d is length of a hypotenuse in triangle. Use Pytago theorem d =
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Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Using the addition formula for sine
sin(a + b) = sinacosb + cosasinb
and the exact values
sin( ) = cos(
) =
, cos(
) =
, sin(
) =
Note that =
+
, thus
sin()
= sin( +
)
= sin()cos(
) + cos(
)sin(
)
= ( ×
) + (
×
)
= +
= → D