Respuesta :
in any triangle all angles must equal 180 so if A is 45 (half right angle) and C is 60 then add them to get 105 then minus it from 180 to get 75 the answer for B
ABC triangle is the same amount as XYZ A and X the fist letters are 45 C and Z are 60 and and B and Y are 75
ABC triangle is the same amount as XYZ A and X the fist letters are 45 C and Z are 60 and and B and Y are 75
Applying the sum of triangle theorem and similarity theorem, the measure of angle Y is: 75°
Recall:
The corresponding angles of two triangles that are similar are always congruent, meaning they are equal in measure.
Thus, given that △ABC is similar to △XYZ, where:
- ∠A = 45°
- ∠C = 60°
Note:
- ∠A ≅ ∠X
- ∠B ≅ ∠Y
- ∠C ≅ ∠Z
- Since ∠B ≅ ∠Y, therefore,
m∠B = m∠Y = 180° - (45° + 60°) (sum of triangle)
m∠Y = 180° - 105°
m∠Y = 75°
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