4 years ago

What do the angles in a quadrilateral add up to?*

Mathematics

2 answers:

inn [45]4 years ago

7 0

Answer:

360

Step-by-step explanation:

sum of anlges= (n-2) *180 where n is the no of sides

oksano4ka [1.4K]4 years ago

5 0

Answer:

A quadrilateral is a shape with 4 sides. ......for any quadrilateral ,we can draw a diagonal line to divide it into two triangles.Each triangle has an angle sum of 180 degrees.Therefore the total angle sum of the quadrilateral is 360 degrees.

Step-by-step explanation:

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blsea [12.9K]

Answer:

Surface area of the box is $=671.48m^2$

Step-by-step explanation:

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$2((20.1*6.8)+(6.8*7.4)+(7.4*20.1))\\\\=2(136.68+50.32+148.74)\\\\=2(335.74)\\\\\=671.48m^2\\\\$

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