if the height of a rectangle is 7 1/2 mm & the perimeter is 34 mm, what is the length base of rectangle?

Question

Geometry

Answer 1

Here's another algebraic way to do the problem.

(7 1/2)(2) + 2x=34

Because 2 times the length plus 2 times the height equals the perimeter.

15+2x=34

Simplify

2x=19

x=9.5

I hope this helps!

Answer 2

9.5 mm

The perimeter is 34 mm so when you add all the sides you have to get to 34.

You know the height is 7 1/2 mm. So that means the other side is the same. Now we add 7 1/2 + 7 1/2 which equals 15.

Next you subtract 15 from 34. You get 19. That is what you have left to figure out the 2 remaining sides. Divide 19 in half (one for each side) and you get 9.5 for each side.

So that means the base of the rectangle is 9.5 mm.

Answer 3

the perimeter is the length all the way round the edge, so

twice the height + twice the base = 34 mm

2 x 7 1/2 + twice the base = 34

15 + twice base = 34

twice the base = 19

the base = 9 and 1/2 mm

Answer 4

2*7 1/2+2l=34
2l=34-15=19
l=19/2=9 1/2mm