100 points!
what are the angle measures of the triangle?

42.5°,68.75°,68.75°

Step-by-step explanation:

Angles In A Triangle

The sum of the interior angles in a triangle is 180°. If the triangle is isosceles, then two of the angles must be equal

The triangle shown in the figure is isosceles (as suggested by the mid-segments), so the unmarked angle must be equal to the other angle adjacent to the like side. We can say

4x-21+2x+37+2x+37=180

Simplifying

8x=127

x=15.875

So the angles are

4x-21=42.5°

2x+37=68.75°

2x+37=68.75°

The total sum is 42.5+68.75+68.75=180

42.5 degrees

68.75 degrees

68.75 degrees

Step-by-step explanation:

The base angles are equal since this is a isosceles triangle.

Angle C is also 2x + 37

Angles in a triangle add up to 180 degrees.

Plug x as 127/8 and solve the angle measurements.

2(127/8) + 37

254/8 + 37 = 68.75

4(127/8) - 21

508/8 - 21 = 42.5

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl