Answer:
90
Step-by-step explanation:
an obtuse angle is an angle from 90 - 180 degrees, so it would greater than 90 degrees
12-4=e.8 not 10. I think you need to look at the question and look at what you wrote.
Answer:
cos(52°) = 18/x
x = 18·sec(52°)
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you that ...
Cos = Adjacent/Hypotenuse
In this geometry, that means ...
cos(52°) = 18/x
You can use the relation sec(x) = 1/cos(x) to rewrite this as ...
x = 18·sec(52°)
_____
You can also use the complementary angle and the complementary trig function.
sin(90° -52°) = 18/x
Answer: Neither
Step-by-step explanation:
Answer:
P= 74
Step-by-step explanation:
For a rectangle with width w and length L, the perimeter P is defined as P=2W+2L
W=16
L=21
P= 2 x 16 + 2 x 21 =
P=74
