in right angle traingle two angle are equal
so.x=y
in triangle
x+y+90=180(sum of interior angle of triangle)
2x=180-90
x=90/3=45°
Answer:
False
Step-by-step explanation:
5x - 2y + 1 > 0
plug in the given ordered pair x= -2 and y = -1:-
5(-2) - 2(-1) + 1
= -10 + 2 + 1
= -7 which is less than 0 therefore the answer is False
Answer:
- perimeter: 42 units
- area: 73.5√3 ≈ 127.3 square units
Step-by-step explanation:
The side length of the hexagon is equal to its radius: 7. The perimeter is 6 side lengths, so is
perimeter = 6·7 = 42 . . . units
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The area is half the product of the perimeter and the apothem. The apothem is cos(30°) = (√3)/2 times the side length, so is (7√3)/2.
A = 1/2·perimeter·apothem
area = (1/2)(42)(7√3)/2 = 73.5√3 . . . square units
I would just use A^2 plus B^2 to get it, but I would ignore the length off the floor because it doesn't change the actual length of it