Answer:
You multiply both of the numbers, and then the answer is your product
Step-by-step explanation:
Answer:
a) ∠ABC = 54°
a) ∠ABC = 43°
Step-by-step explanation:
<u>Trigonometric ratios</u>

where:
is the angle- O is the side opposite the angle
- A is the side adjacent the angle
- H is the hypotenuse (the side opposite the right angle)
<u>Part (a)</u>
Use the cos trig ratio to find an expression for the measure of BD:


Use the cos trig ratio and the found length of BD to find angle ABD:



Therefore:



<u>Part (b)</u>
Use the tan trig ratio to find angle CAD:



Therefore:


∠ABC = ∠ABD
Interior angles of a triangle sum to 180°



Answer:
44º
Step-by-step explanation:
6/21 I think cause you can't go down any more