Hello!
To find cosine, use the formula cos = adjacent / hypotenuse.
According to angle B, adjacent of angle B is side A, and the hypotenuse is side c because the hypotenuse is always opposite the right angle.
Therefore, the cosine of angle B is a/c.
Answer:
A) 65 degrees
B) 89 degrees
Step-by-step explanation:
Complementary angles always add up to 90 degrees whereas supplementary angles always add up to 180 degrees
Hope it helps :)
Answer:
a. √442, b. √540, c. 8
Step-by-step explanation:
remember that a^2 + b^2 = c^2
The answer is because the LCD of 4 and 10 is 20.
Answer:10
Step-by-step explanation:10x10 is 100 this is the square root
