For the first part, since you know that 4^2 in 16, which is your area, then the 2 sides are 4 square yards and 4 square yards. For the second part, you know that all sides on a square are equal so if one side is 4 square yards, then so are all the other sides. As a result, 4 times 4 is 16, your perimeter.
Final Answers: Part 1 - The length of one side is 4 yards.
Part 2 - The perimeter is 16 yards.
THE ANSWER SHOULD BE C AND B
Use the cosine rule.
c=AB=7
b=AC=8
a=BC=3
a^2=b^2+c^2-2bc(cos(A))
=>
cos(A)=(b^2+c^2-a^2)/(2bc)
=(7^2+8^2-3^2)/(2*7*8)
=13/14
=0.9286
Answer:
Step-by-step explanation:
x^2 + 8^2 = 9^2
x^2 + 64 = 81
x^2 = 17
x = sqrt(17)
answer is D
That’s all it is not really understanding
