Answer: D. 64° and 90°
Steps:
A right triangle is a triangle with a 90° angle.
90° + 26° + x = 180°
116° + x = 180°
x = 180° - 116°
x = 64°
We know that
sin 64°= cos (x)
64° and x-------> are complementary angles
64°+x=90°
then
x=90-64----------> 26°
so
sin 64°=cos 26°
the answer is
x=26°
Answer:
The Answer is C
Step-by-step explanation:
Answer:
C. 15
Step-by-step explanation:
Small triangle is similar to larger one so we can use the similarity ratio to solve the question:
CE/CA = DE/AB
4/12 = 5/AB cross multiply expressions
4AB = 60 divide both sides by 4
AB = 15
