Question

Find the value of exterior angle in a pentagon if any four cereal angle are 68 degree 60 degree 90 degree and 90 degree

Answer 1

Answer:

68°+60°+90°+90°=360°

Step-by-step explanation:

x+128 + 180=360° { let exterior angle=x}

x +308=360°

x=360°-308°

x=52°

Answer 2

Answer:

answer is 52 degree

Step-by-step explanation:

Let the fifth angle be x,

we know that, sum of all exterior angles are 360degree

therefore,

angle1+ angle2+ angle3+ angle4+angle5 = 360 degree

68+60+90+90+x=360

308+x=360

308x=360

x=360*308

x=52 degree

hence, the value of fifth angle is 52 degree