The area of a triangle is found using the formula 1/2 x base x height.
The larger triangle has a base of 20cm and a height of 18cm.
The area would be 1/2 x 20 x 18 = 180 square cm.
The white triangle has a base of 20cm and a height of 8cm.
The area would be 1/2 x 20 x 8 = 80 square cm.
The area of the shaded portion would be the larger triangle minus the smaller triangle:
180 - 80 = 100 square cm.
5 : 25 → (÷5) → 1 : 5
Answer : 1 : 5
Answer:
3
Step-by-step explanation:
<h3>Steps to answering this question : </h3>
- Determine the perimeter of the ceiling
- Divide the perimeter of the ceiling by the length of the rolls of crepe paper
Perimeter of square = 4l
Where l = length of a side
4 x 15 feet = 60 feet
60/20 = 3
Answer:
a=Rational
b=interger
c=irational
d=whole
Step-by-step explanation:
I hope this helps! (i am sorry if it is wrong)