Answer:
Step-by-step explanation:
1+sin²(a) +cos²(a) =2
note : for all a in R : sin²(a) +cos²(a) =1
so : 1+sin²(a) +cos²(a) = 1+1 =2
Answer: 12 yd^3
Step-by-step explanation:
(base area x height)/3
1/2 x base x height = base
1/2 x 4 x 3 = 6
36/3 = 12yd^3
Answer:
Step-by-step explanation:
This might be familiar to you if you know about the pythagorean relationship in right triangle, aka pythagoras's theorem.
It states that, in a right triangle, the sum of the squares of the 2 shorter sides equals the square of the longest side, aka the hypotenuse.
Note that the triangle in this case is a right angled triangle, and all the surrounding shapes are squares.
So by the pythagorean relationship we have,
2^2 + 4^2 = c^2
4 + 16 = c^2
20 = c^2
c = sq root 20 = 2 * sq root 5
Hope it helps and if it does, plzzz mark me brainliest ;-)