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Answer: b=40
Step-by-step explanation:
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.
Answer:
the answer should be 200
2((5)(8)+(8)(5))
=(2)((5)(8)+(8)(5))
=(2)((5)(8))+(2)((8)(5))
=80+80
=160
Your answer is -8