Question

explain why a rectangle is a convex quadrilateral
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Answer 1

because of the angle of it

Answer 2

Hope it helps you

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A rectangle has the following characteristics:-

(i) It has 4 sides, the opposite sides are equal & parallel to each other.

(ii) Each angle =90⁰.

So, under the above characteristics, if we join the opposite corners, the diagonals will lie entirely in the interior of the rectangle.

Moreover, all the angles are less than 180⁰.

These are the characteristics of convex polygons.

∴ A rectangle is a convex polygon.