4/5. I was doing math assignments like this earlier and remember how to do this. If you need more help on this let me know.
Answer:
The required answer is
Therefore the number in green box should be 7.
Step-by-step explanation:
Given:
AB = 7√2
AD = a , BD = b , DC = c , AC = d
∠B = 45°, ∠C = 30°
To Find:
c = ?
Solution:
In Right Angle Triangle ABD Sine identity we have

Substituting the values we get


Now in Triangle ADC Tangent identity we have

Substituting the values we get

The required answer is
I dont know if its right. it is seven hundred fifty one
Use distance formula.
√(2-5)²+(2-4)²
√(-3)²+(-2)²
√9+4
√13
Letter D.