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Are consecutive interior angles of a rectangle are supplementary?
Yes. Two angles are suplementary if their sum is 180 degrees. All interior angles in a rectangle are 90 degrees, so any pair of these angles is supplementary.
What is a consecutive angle in a triangle?
There are 3 interior angles in a triangle that add up to 180 degrees and the 3 consecutive angles of 59, 60 and 61 degrees inside a scalene triangle add up to 180 degrees.
One of a pair of consecutive angles whose common side is a base of the trapezoid?
The 4 interior angles of a trapezoid add up to 360 degrees and if it's an isosceles trapezoid then base angles will be equal
How The bisectors of any 2 consecutive angles of a parallelogram intersect at right angles?
I expect "consecutive angles" are any pair that aren't opposite. Since they are co-interior angles between parallel lines, they are supplementarty (i.e. total 180 deg). When you bisect them, the bisectors join to form a triangle. Two of its angles are halves of the "consecutive angles", and so they total half of 180 deg, which is 90 deg. Hence the third angle is 90 deg (to give angle sum of the triangle as 180 deg), so the bisectors are perpendicular.
Is the consecutive sides of square are perpendicular?
Yes a square has 4 equal sides that are perpendicular to each other forming 4 interior right angles
