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algol13
2 years ago
15

The angles in a quadrilateral are 103.8° , 77° , 111.4° and p°. Calculate the value of p.

Mathematics
2 answers:
Anni [7]2 years ago
6 0

Answer:

68.6

Step-by-step explanation:

hello sir / mam!

as the opposite sides of quadrilateral should be 180°

111.4+p=180°

p=180-111.4

p=68.6°

therefore the value of p = 68.6°

hope it helps!

mars1129 [50]2 years ago
5 0

Answer: 67.8°

Step-by-step explanation:

A quadrilateral's interior angles always add up to 360°.

An equality statement can be set up to satisfy this rule:

103.8+77+111.4+p=360

Collect known values

292.2+p=360

Isolate and solve for p

292.2 (-292.2) +p=360 (-292.2)

p=67.8

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