Question

In a quadrilateral ABCD angle A = 80° , angle B = 75° and angle C =100° Find angle D

pls tell
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Answer 1

Answer:

THE SUM OF ALL ANGLES IN A QUADRILATERAL IS EQUAL TO 360°

A + B + C + D = 360°

80° + 75° + 100° + x = 360°

255° + x = 360°

x = 360° - 255°

x = 105°

THERE FORE,

ANGLE D IS EQUAL TO

105°

Step-by-step explanation:

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Answer 2

Answer:

The answer is 105 degrees.

Step-by-step explanation:

The angle sum property of a quadrilateral states that the sum of the angles of a quadrilateral is always 360 degrees.

So by this:

Angle A+B+C+D=360

Substituting the values of A, B , and C:

80+75+100+D=360

255+D=360

D=360-255

D=105

Thus the measure of angle D is 105 degrees.

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