Do 12 2/3+10 2/3 which is 23 1/3 than subtract 8 2/3 for your answer.
Answer:
C IS THE ANS COS ALL POLYGONS ARE CLOSED AND IF IT NOT CLOSED IT NOT A POLYGON
It’s simple, do: 8+8+10+10, just add them you will get 36. The explanation is: Perimeter is add up all the sides, since it is a rectangle it has congruent sides, so they have the same length
Answer:

Explanation: We need to find the area of the triangle, We know that the area of any right triangle is:

Therefore in the information given we have the following:

Therefore the Area of this triangle is as follows:

Note! Units are centimeter-squared
3/10 is represented as 30%.