Answer:
x = 180
Step-by-step explanation:
since straight lines are 180
(is it asking to find the area?)
Answer:
x = ± 
Step-by-step explanation:
Given
x² - 7 = 0 ( add 7 to both sides )
x² = 7 ( take the square root of both sides )
x = ±
Answer:
39
Step-by-step explanation:
found the sides length using pythagorean's theorem, and adding them all together
Step-by-step explanation:
x+y=17 (First equation)
x-y=3 (Second equation)
Solving Equation (i)
x+y=17
x=17-y(First equation)
Putting value of x in equation (ii)
x-y=3
x=3+y
17-y=3+y
17=3+y+y
17=3+2y
2y=17-3
y=14/2
y=7
Putting value of y in equation(i)
x=17-y
x=17-7
x=10
C. A right angle because if two are supplementary than other two are going to be right angle. I hope I am right if I am not I am sorry
