Its 4 (24+8 because the am answer because 28+12= 28.
In box 1, the reason that justifies the statement, m∠BAD = m∠BAC + m∠CAD, is: angle addition postulate.
<h3>What is the Angle Addition Postulate?</h3>
The angle addition postulate states that the measure of a larger angle equals the sum of smaller angles that make up the larger angle.
∠BAD comprises of ∠BAC and ∠CAD.
Therefore, based on the angle addition postulate, m∠BAD = m∠BAC + m∠CAD.
The missing reason in box 1 would be: angle addition postulate.
Learn more about angle addition postulate on:
brainly.com/question/24782727
#SPJ5
Answer:
see below
Step-by-step explanation:
Pythagorean theorem:
, where c is hypotenuse, a and b are the other 2 sides in triangle
1.
= ![\sqrt{81-9} = \sqrt{72} = \sqrt{36*2} = 6\sqrt{2}](https://tex.z-dn.net/?f=%5Csqrt%7B81-9%7D%20%3D%20%5Csqrt%7B72%7D%20%3D%20%5Csqrt%7B36%2A2%7D%20%3D%206%5Csqrt%7B2%7D)
2. ![x = \sqrt{18^2-10^2} =\sqrt{324-100} = \sqrt{224} =\sqrt{16*14} =4\sqrt{14}](https://tex.z-dn.net/?f=x%20%3D%20%5Csqrt%7B18%5E2-10%5E2%7D%20%3D%5Csqrt%7B324-100%7D%20%3D%20%5Csqrt%7B224%7D%20%3D%5Csqrt%7B16%2A14%7D%20%3D4%5Csqrt%7B14%7D)
3. ![x = \sqrt{4^2+14^2} =\sqrt{16+196} =\sqrt{212} =\sqrt{4*53} =2\sqrt{53}](https://tex.z-dn.net/?f=x%20%3D%20%5Csqrt%7B4%5E2%2B14%5E2%7D%20%3D%5Csqrt%7B16%2B196%7D%20%3D%5Csqrt%7B212%7D%20%3D%5Csqrt%7B4%2A53%7D%20%3D2%5Csqrt%7B53%7D)
Answer:
1-5,-0.25,0.3
Step-by-step explanation: