90 degrees, it looks like a right angle
Hope it helps :))
If a² + b² = c², then the triangle is <u>right</u>.
So we have (8)² + (11)² <u>?</u> (13)²
(8)² is 64, (11)² is 121, and (13)² is 169.
So we have 64 + 121 <u>?</u> 169
64 + 121 is 185 and we can see that 185 > 169.
This triangle would not be a right triangle.
In fact, it would be an acute triangle.
So no, it's not a right triangle.
2 litres every 2.5 minutes is 4 litres every 5 minutes so therefore, it is 0.8 litres/minute (800ml per minutes)
When you simplify the expression 1/1+cot^2x the final product is C. sin^2 (x).
Hope this helps!
If the center of the cercle is (0,0) then the standard equation becomes"
x²+y²=(4.5)²