Perimeter is the sum of all the sides .The given sides are : 10a-4 ,6a+8,6a+8,12a
The given perimeter is 102 .We can form an equation:
10a-4+6a+8+6a+8+12a=102
Adding like terms :
34a +12=102
Subtracting 12 both sides:
34a= 90
Dividing by 34 both sides:
a=-2.65.
The given sides are :
6a+8= 23.9
12a= 31.8
10a-4=22.5
Among these 31.8 is the largest side .
So the side having 12 a length is largest.
Answer:
5
Step-by-step explanation:
Answer:
The answer is sides are congruent by the reflexive property
Step-by-step explanation:
The answer is sides are congruent by the reflexive property because the two red lines on the triangles represnt that they are congruent. The reason teh fourth one can be a correct answer, but it is not, is because the angles are not vertical. The angles would hav eto be in teh middle of the triangle and congruent, to be right. So it is a reflexive property.
Sorry for any gramatical or spelling mistakes!
Answer:
The plane travels at a speed of approximately 262.768 miles per hour.
Step-by-step explanation:
The absolute velocity of the plane () is the vectorial sum of vectors from engines () and wind flow (). All vectors are measured in miles per hour. That is:
(1)
Let suppose that both north and east semiaxes are positive.
If we know that and , then the resultant velocity of the plane is:
The resultant speed of the plane is determined by Pythagorean Theorem:
The plane travels at a speed of approximately 262.768 miles per hour.
3.1 divide by 10.261
=3.1