Draw four perpendicular lines that cross each other. Like this: # except at right angles. Count the angles - 4 in the centre square, and 12 around the overlapping parts.
16 angles, 8 of each measure - unless the transversal is perpendicular in which case, all 16 angles are right angles.
I believe that an octagon has 16 lines of symmetry.
16
A regular pentagon has no acute angles. It is possible to draw a pentagon (five sided polygon) where four of the internal angles are acute.
To draw a 16-to-1 demultiplexer, start by creating a box labeled "16-to-1 Demux" with one output line and 16 output lines. Connect 4 select lines (S0, S1, S2, S3) to the input of the demultiplexer to control which of the 16 outputs is activated. Draw the 16 output lines branching from the box, labeling each output from Y0 to Y15. Finally, indicate that the single input signal is fed into the demultiplexer, which directs it to one of the 16 outputs based on the selected input combination.
4 perpendicular lines (Assume that it is perpendicular)----> # 2 lines intersected made 4 right angles. 4 lines make 16 right angles. 4*4=16
16 angles, 8 of each measure - unless the transversal is perpendicular in which case, all 16 angles are right angles.
I believe that an octagon has 16 lines of symmetry.
16
16
16
(2 x 16 - 4) right angles = 28 right angles = 28 x 90 = 2520 degrees
-- Every rectangle has four interior right angles.-- Every square is also a rectangle, so the question is describing a total of four rectangles.-- (4 rectangles) x (4 right angles per rectangle) = 16 right angles
16
A pyramid has 6 angles, 8 faces, and 6 edges. Is that right?
A regular pentagon has no acute angles. It is possible to draw a pentagon (five sided polygon) where four of the internal angles are acute.
A rectangle has 4 right angles. There are no acute angles.