Perimeter=2L+2W, in this case L=80+2(25) and W=170+2(25) so
P=2(L+W)=2(80+50+170+50)
P=2(350)=700m
BD=10 because it is symmetrical to AD.
Answer:
A
Step-by-step explanation:
We are given that:

And we want to find:

Remember that tangent and cotangent are co-functions. In other words, they follow the cofunction identities:

Therefore, since tan(θ) = 1.3 and cot(90° - θ) = tan(θ), then cot(90° - θ) must also be 1.3.
Our answer is A.
Answer:
y = 31
Step-by-step explanation:
We'll, if x + y = 10,
and x = -21,
then: -21 + y = 10.
To solve, add 21 on both sides to get y = 31
Hope this helps :)