maryamalizai114
maryamalizai114 maryamalizai114
  • 23-01-2021
  • Mathematics
contestada

isosceles and equilateral triangles (please help me as fast as you can thank you)

isosceles and equilateral triangles please help me as fast as you can thank you class=

Respuesta :

Hrishii
Hrishii Hrishii
  • 23-01-2021

Answer:

x = 71°

x = 19°

x = 34°

Step-by-step explanation:

In rectangle ABCD. By exterior angle theorem:

x + 65° = 46° + 90°

x + 65° = 136°

x = 136° - 65°

x = 71°

Since, XYZ is an equilateral triangle,

Therefore, m(angle XZY) = 60°, So, by exterior angle theorem:

m angle XZY = x + 41°

60° = x + 41°

60° - 41° = x

19° = x

x = 19°

PQR is an isosceles triangle. In which PQ = PR.

Therefore,

m(angle PRQ) = m(angle PQR) = 69°

By exterior angle theorem:

x + 35° = 69°

x = 69° - 35°

x = 34°

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