Answer:
42 square units
Step-by-step explanation:
By substituting the value of 3 to the given, we can find that the length of the rectangle is 7 units and the width is 6 units. For the area of the rectangle, the formula is lxw so the answer is 42 square units
Answer:
42 units²
Step-by-step explanation:
Formula to find the area of a rectangle.
Area = Length × Width
According to the question,
Area = ( 2c + 1 ) ( 3 + c )
= 2c ( 3 + c ) + 1 ( 3 + c )
= 6c + 2c² + 3 + c
= 2c² + 7c + 3
Now, they have given that,
c = 3
So, now let us put 3 instead of c to the equation and let us find the area of the rectangle.
Area = 2c² + 7c + 3
= 2 × (3)² + 7 × 3 + 3
= 2 × 9 + 21 + 3
= 18 + 21 + 3
= 42 units²
Hope this helps you :-)
Let me know if you have any other questions :-)
