PLZ HELP its Triangle Properties and where using the 45º-45º-90º Triangle Theorem and the 30º-60º-90º Triangle Theorem.

Answer:
The answer to your questions is below
Step-by-step explanation:
4.-
In a 45°-45°-90° triangle, the length of the legs are "x" and the length of the hypotenuse is x[tex]\sqrt{2}[/tex]
Then, in this problem, the length of the leg is 7 then the length of the hypotenuse will be 7[tex]\sqrt{2}[/tex]
5.- In a 30°-60°-90° triangle, the length of the hypotenuse is 2x, the length of the longer leg is x[tex]\sqrt{3}[/tex] and the length of the shorter leg is x.
In this problem we have the length of the hypotenuse = 20 and find x.
2x = 20
x = 20/2
x = 10
longer leg = x[tex]x\sqrt{3} = 10\sqrt{3}[/tex]
6.- nonzero
7.- hypotenuse = 20 cm
Find x
2x = 20
x = 20/2
x = 10
Shoter leg = x = 10 cm
Answer:
Triangle ABC is an isosceles right triangle. What is the measure of one base angle?
45º
Step-by-step explanation: