Square root 156.25 to get the values of the sides of the square. You will get 12.5m for each side.
Now that you have the side values, use Pythagoras' Theorem to solve for the diagonal. Let's call the diagonal x,
c^2 = a^2 + b^2
x^2 = 12.5^2 + 12.5^2
= 312.5
Square root both sides to get x,
x = 17.68m (2 d.p)
HOPE THIS HELPED! Ask me if there is anything you don't understand from this working :D
Answer:
A and D
Step-by-step explanation:
Answer:
First: 72
Second: 24
Third: 84
Step-by-step explanation:
Let's say that the second angle, the smallest one, is x. Using the provided information, we can make the equation 180=3x+x+x+60, or 180=5x+60. To solve for the second angle, first subtract 60 from each side (120=5x) and then divide each side by five (24=x). Now, to find the first angle, we multiply the second by three (3*24=72). To find the third, add 60 to the second (24+60=84).