Answer:
1
Step-by-step explanation:
cos²Ф(1 + tan²Ф) Simplify 1 + tan²Ф
cos²Ф(1/cos²Ф) Multiply
1
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Answer:
C. 48 ♡
Step-by-step explanation:
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Answer:
DE = 20units
Step-by-step explanation:
In Δ ABC,
angle A is congruent to angle B.... (given)
therefore, ΔABC is an isoceles triangle.
therefore, CA = CB..... (side opposite to congruent angles are congruent in an isoceles triangle)
therefore, CB = 4 units
In ΔCDE,
angle D is congruent to angle E.... (given)
therefore, ΔCDE is an isoceles triangle.
therefore, CD = CE
therefore, CD = 8 units
ΔCDE ~ ΔCBA
therefore,
The act was signed into law by President Chester A. Arthur.