Answer:
30
Step-by-step explanation:
Angle B measures 60°. What is the measure of the angle that is complementary to angle B?
30°
60°
120180°
Answer: 6
Step-by-step explanation: set the equations equal to each other then solve. plug that number into the equation for AB
Answer:
I really don't know but just use a calculator
Answer: 1 hour 20 minutes
<u>Step-by-step explanation:</u>
Let's figure out how long it would take 1 person to dig the hole and then divide that number by 9 (since they are sharing the workload).
Because this is a triangle and we know that we can use the Pythagorean Theorem to find the hypotenuse we just plug in the numbers. But because you have the hypotenuse already you will subtract the leg from the hypotenuse.
A^2+B^2=C^
16^2+B^2=20^2
256+B^2=400 subtract 256 from both sides
B^2=144 now take the square root of both sides
B=12
The second leg is 12 cm long. Your answer is B, the second answer.
