Two triangles each have an angle measuring 15 degrees. The first triangle also has an angle measuring 20 degrees.

Answer 1

2 triangles each have an angle measuring 15 degrees

2nd triangle also has an angle measuring 20 degrees

2nd triangle's angles are 15, 20, and 180-15-20= 145 degrees

2nd's angles are 15,20,145, an obtuse triangle

1st triangle has angles 15, B, C

where B =180-15-C

and C = 180-15-B

you can find the ratio of the sides of the 2nd triangle,

longest side is opposite largest angle, smallest side opposite smallest angle

if side opposite 15 is 1, then side opposite 20 is 1.321 and side opposite 145 is 2.216

that's the ratio of sides: 1:1.321:2.216

but you have no clue the actual side lengths without more information, but they are

some multiple of 1:1.321:2.216

1st triangle's other 2 angles and sides are a near total mystery

other 2 angles of the 1st triangle sum to 165 degrees

that's about all further you know about triangle number 1