Answer:
4
Step-by-step explanation:
All these numbers multiply by 4
Answer:
<em>The width of the lid is 15 cm</em>
Step-by-step explanation:
<u>The Perimeter of a Rectangle</u>
Given a rectangle of width W and height H, the perimeter is calculated as:
P = 2(W + L)
Jon used 56 cm of ribbon to go around the edge of a rectangular lid. This means the perimeter is:
2(W + L) = 56
Dividing by 2:
W + L = 28
Since the lid was L=13 cm long, the width is:
W = 28 - 13 = 15
The width of the lid is 15 cm
Answer:
Step-by-step explanation:
What do you mean by word expression? Need more info
20, added with 5 times of 9 __ ?
Answer:
you offered 13 points not 25
Answer:
- sides: isosceles
- angles: right
Step-by-step explanation:
At first, lets find the distance from one point to the other.

The same way, you can find that:

Since the triangle has only its two sides equal to each other (AB = AC),
it's an isosceles one.
As long as the angles are concerned, we gotta "cheat". In other words, we see that:

By the inverse of pythagorean theorem, we know that if the above equation holds, then we have a right-angled triangle. That is to say that,
A = 90
Since its an isosceles triangle, AB = AC,
B = C = (180 - A)/2 = 45 degrees