To determine to measure of the unknown angle, be sure to use the total sum of 180°. If two angles are given, add them together and then subtract from 180°. If two angles are the same and unknown, subtract the known angle from 180° and then divide by 2.
Answer:
How I answered this was
Line up 812 divided by 12
So 81 divided by 12 = 72
Subtract 81 - 72
Which would equal 9
then bring down the two in 812
Which would make it 92
Then divide that by 12
which would equal 84
the subtract 92 - 84
that would equal 8
put a decimal then bring down a 0
that would be 80 then divide 80 by 12
that would be 7 which would equal 8 again
so our answer would be 67.6 continuous.
Answer: Rhombus
A rhombus is a quadrilateral with all four sides the same length. If all four angles are the same (all 90 degrees), then the rhombus is more specifically a square. Any rhombus is a parallelogram which is why we have congruent opposite pairs of angles.
Answer:-8
Step-by-step explanation:
8+4a=3a
8=3a-4a
8=-a
a=-8
triangle B. because congruent is supposed to be the same shape same size but triangle b is same shape but a different size
