Question

solve this question ​

Answer 1

Given,

three angles = 76°,54°,108°

And let the fourth angle be x°

We know that,

sum fo all angles in a quadrilateral = 360°

76°+54°+108°+ x = 360°

238° + x = 360°

x = 360° - 238°

x = 122°

Hence, the fourth angle = 122°

Answer 2

Answer:

Angle D = 122°

Explanation:

GIVEN,

Angle A=76°

Angle B=54°

Angle C=108°

Angle D=?

To find;

Angle D=?

SOLUTION=>

=> sum of all angles of a quadrilateral=360° (angle sum property)

=> angle A+ angle B + angle C + angle D = 360°

=>76+54+108+ angle D =360°

=>238+ angle D =360°

=>angle D = 360°-238°

=>angle D = 122°

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