Answer:
The adjacent side measurement over the hypotenuse measurement.
cos = A/H
The value of x is 78 Degrees. The angles are complementary so they are equal.
Answer:
C
Step-by-step explanation:
I hoped I helped you
It is a right triangle. If it contains the 90°, it is definitely a right triangle.
Answer:
Area of ABD = 9/2 or 4.5cm^2
Step-by-step explanation:
Area of triangle =
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plug-in ABD


Area of ABD = 9/2 or 4.5cm^2