I think it's D. The area of A is k2 times the area of rectangle B
Answer:the length of the third side is 4√7
Step-by-step explanation:
The perimeter of a triangle is 16 to the square root of 7 feet. This is expressed as
Perimeter = 16√7 feet
The perimeter of a triangle is the sum of the length of the three sides of the triangle.
If the two sides measure the square root of 343 feet and the square root of 175, which are expressed as √343 and √175, the third length would be
16√7 - (√343 + √175)
Expressing √343 as a radical, it becomes 7√7
Expressing √175 as a radical, it becomes 5√7
7√7 + 5√7 = 12√7
Therefore, the third length would be
16√7 - 12√7 = 4√7 feet
Answer:
a) Yes
b) Not a right triangle
Step-by-step explanation:
<h3><u>Part (a)</u></h3>
The sum of the lengths of any 2 sides of a triangle is greater than the length of the 3rd side.
7 + 8 = 15 > 9
7 + 9 = 16 > 8
8 + 9 = 17 > 7
Therefore, a triangle with side lengths 7, 8 and 9 <u>can</u> be made.
<h3><u>Part (b)</u></h3>
To determine if the triangle is a right triangle, use Pythagoras' Theorem:
a² + b² = c² (where a and b are the legs, and c is the hypotenuse)
The hypotenuse is the longest side, therefore:
Substituting these values into the formula:
⇒ a² + b² = c²
⇒ 7² + 8² ≠ 9²
⇒ 113 ≠ 81
As 7² + 8² ≠ 9² then the triangle is <u>not</u> a right triangle.
Answer:
I'm pretty sure it's the first one
