7. previously answered in another question, but last choice is correct
8. yes a diameter is a chord. A chord is any line that connects 2 points on a circle
First we use a^2-b^2=(a-b)(a+b)
Here a =5 and b = x
5(5^2-x^2)
5(25-x^2)
Now multiply with 5
125- 5x^2
Answer:
In a 45 - 45 - 90 triangle, the legs are equal and the ratio of sides from shortest to longest is 1 : 1 : √2 where 1 are the legs and √2 is the hypotenuse. In this case the leg is 10 / √2 = 5√2.
Answer:I would thik its 7.3 im not sure tho. srry
Step-by-step explanation: