Answer:
C
Step-by-step explanation:
So if it's not 180°, it won't be a triangle :)
Hope this helps!
Acute Angle- Smaller than 90 degrees
Obtuse Angle- Bigger than 90 degrees
Right Angle- 90 degrees
Answer:
Area = 228 m²
Perimeter = 60 m
Step-by-step explanation:
The figure given shows a rectangle that has a cut triangular portion.
✔️Area of the figure = area of rectangle - area of the triangular cut portion
= L*W + ½*bh
Where,
L = 20 m
W = 12 m
b = 20 - (8 + 8) = 4 m
h = 6 m
Plug in the values
Area = 20*12 - ½*4*6
Area = 240 - 12
Area = 228 m²
✔️Perimeter = perimeter of rectangle - base of the triangular cut portion
= 2(L + W) - b
L = 20 m
W = 12 m
b = b = 20 - (8 + 8) = 4 m
Plug in the values
Perimeter = 2(20 + 12) - 4
= 2(32) - 4
= 64 - 4
Perimeter = 60 m
Thousands, or 5,000. You can find this by changing all other numbers to a 0. 005,000. Since we know that the first two zeroes won't effect it's actual value, you get 5,000.
I know 15, 17, 18, and 19 are for sure true and that 16 is false. I’m not sure about 20