Respuesta :

KarkiDikshya01

Answer:

D=E (Base angle of isosceles triangle are equal)

D+E+F= 180° (sum of angles of a triangle️)

(4x+7)+(4x+7)+(5x+10) = 180

13x = 180- 24

x= 156/13 = 12°

so, E= 4x+7 = 4×12+7 = 55

Hope this helps:)

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