tan = opp/adj
x = 13(tan 45)
x = 13
//
a² + b² = c²
13² + 13² = 338²
square root of 338 is not a rational number so turn into mixed radical.
 
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Answer:
480 miles 
Step-by-step explanation: 4 times 120
 
        
             
        
        
        
Answer:
Your answer is 5.5 cm². 
If this helps you, mark me brainliest!!
 
        
             
        
        
        
Answer:
The angle inscribed in a semicircle is a right angle. The inscribed angle theorem states that the angle θ, inscribed in a circle is half the measure of the central angle of the circle. So, if the given is a semi-circle, then the inscribed angle is half of 180, therefore, 90 degrees and a right angle
 
        
                    
             
        
        
        
<em>AC bisects ∠BAD, => ∠BAC=∠CAD ..... (1)</em>
<em>thus in ΔABC and ΔADC,    ∠ABC=∠ADC (given), </em>
<em>                                       ∠BAC=∠CAD      [from (1)],</em>
<em>AC (opposite side side of ∠ABC) = AC (opposite side side of ∠ADC), the common side between ΔABC and ΔADC</em>
<em>Hence,      by AAS axiom, ΔABC ≅ ΔADC,</em>
<em>Therefore,  BC (opposite side side of ∠BAC) = DC (opposite side side of ∠CAD),  since (1)</em>
<em />
Hence, BC=DC proved.