Did I do 8 and 9 right? Please help.

Given:

Area of rectangular paper = 24 square feet

Solution:

Part A:

Possible dimensions of area 24 square feet:

1 × 24 = 24,   2 × 12 = 24,   3 × 8 = 24,   4 × 6 = 24

These are the possible dimensions of rectangles.

Part B:

Perimeter of rectangle with dimension 1 × 24

              = 2(1 + 24)

              = 50 feet

Perimeter of rectangle with dimension 2 × 12:

              = 2(2 + 12)

              = 28 feet

Perimeter of rectangle with dimension 3 × 8

              = 2(3 + 8)

              = 22 feet

Perimeter of rectangle with dimension 4 × 6:

              = 2(4 + 6)

              = 20 feet

From these perimeters, dimension 1 × 24 has the greatest perimeter.

Part C:

Because from above part B, 50 feet is the greater perimeter but the area is same as the another rectangles. Therefore it is not true.

No, it is not necessary that if a rectangle has a greater perimeter than another rectangle then, it also have a greater area.

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.

step-by-step explanation: