Answer:
A.
1) 16x -4
2) 14x + 9
3) 8x - 4
B.
1) D
2) C
3) A
4) E
5) B
Step-by-step explanation:
1) It is a rectangle. It can be observed that two pairs of opposite sides are congruent.
So,
Perimeter = 2(l + w)
Perimeter = 2[(5x-2) + (3x)]
Perimeter = 2(8x - 2)
Perimeter = 16x -4
2) It can be noted that two pairs of opposite sides that are congruent.
Perimeter = [(2x +3) + 2(5x + 2) + 2(x + 1)]
Perimeter = [(2x + 3) +(10x + 4) + (2x + 2)]
Perimeter = (2x + 10x + 2x) + ( 3 + 4 + 2)
Perimeter = 14x + 9
3)
Perimeter = [(5x - 2) + (x- 3) + (2x + 1)]
Perimeter = (5x + x + 2x) +[(-2) + (-3) +1]
Perimeter = 8x - 4
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
Answer:
A.
1) 16x -4
2) 14x + 9
3) 8x - 4
B.
1) D
2) C
3) A
4) E
5) B
Step-by-step explanation:
A.
1) It is a rectangle. It can be observed that two pairs of opposite sides are congruent.
So,
Perimeter = 2(l + w)
Perimeter = 2[(5x-2) + (3x)]
Perimeter = 2(8x - 2)
Perimeter = 16x -4
2) It can be noted that two pairs of opposite sides that are congruent.
So,
Perimeter = [(2x +3) + 2(5x + 2) + 2(x + 1)]
Perimeter = [(2x + 3) +(10x + 4) + (2x + 2)]
Perimeter = (2x + 10x + 2x) + ( 3 + 4 + 2)
Perimeter = 14x + 9
3)
Perimeter = [(5x - 2) + (x- 3) + (2x + 1)]
Perimeter = (5x + x + 2x) +[(-2) + (-3) +1]
Perimeter = 8x - 4