Step-by-step explanation:
Sum of any 2 sides must be higher than the third side.
Area of a triangle is 1/2 x base x height:
Area = 1/2 x 8 x 20.5 = 82 square cm.
It is hone-half the area of a rectangle with dimensions 20.5 by 8 cm.
You would multiply 1/7 and 14 to get your number so your answer is 2
C is the answer you are looking for