Answer:
Angle I = 90 degrees
Angle J = 61 degrees
Angle K = 29 degrees
Step-by-step explanation:
Angle I is given
We know that the angles in all triangles add up to 180. Since we are given that angle I is equal to 90 degrees, we now know that angle J + angle K = 90 degrees:
(5x+26) + (2x+15) = 90
Solve for X:
7x + 41 = 90
7x = 49
x = 7
Angle J = (5x + 26) = (5(7) + 26) = 61
Angle K = (2x + 15) = (2(7) + 15) = 29
Checking your work: 61 + 29 = 90
The 3 angles of a triangle will add up to 180 degrees.
5x + 2x + 3 + 3x - 3 = 180...combine like terms
10x = 180
x = 180/10
x = 18
one angle is : 5(x) = 5(18) = 90 degrees
the other angle is : 2x + 3 = 2(18) + 3 = 39 degrees
the last angle : 3x - 3 = 3(18) - 3 = 51 degrees
The answer is: 9There are 9 kinds of non-congruent isosceles triangles that can be formed <span>by connecting three of the dots in a 4 x 4 square array of dots</span>
The attached figure represents the explanation of the answer.
<span />
Answer:
example, such as you could cover 3 miles in distance 1 a a quantity that has both a magnitude/size speed limits on the roads and more junctions in 3 velocities for each section: A = 200 m / 50 s = front stops suddenly. gravitational potential and back as the roller 3 a mass = 1000 m3 × 1000 kg/m3 = 1 × 106 kg.
Step-by-step explanation:
Answer:
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
In the right triangle ABC
The cosine of angle of 30 degrees is equal to divide the adjacent side to angle of 30 degrees by the hypotenuse
so
we have
substitute
solve for AB