Answer:
150 square meters
Step-by-step explanation:
Assuming that this field is triangular, we can multiply the two shortest sides together, and then divide by 2, because that is the formula for the area of a right triangle.
So 15 times 20 is 300
300 divided by 2 is 150
So we can estimate the area to be 150 square meters.
(Upon solving further, we realize that this is a right triangle, so our initial estimation is the exact area)
of his journey he still has to complete .
<u>Step-by-step explanation:</u>
Here we have , A salesman traveled 2/5 of his journey before lunch and 3/8 of his journey after lunch. We need to find What fraction of his journey has he still to complete . Let's find out:
Let , total journey of salesman to travel be x . So , A salesman traveled 2/5 of his journey before lunch and 3/8 of his journey after lunch . Let , y be the fraction of his journey has he still to complete . So , According to question:
⇒
⇒
⇒
⇒
⇒
⇒
⇒
Therefore , of his journey he still has to complete .
Answer:
I believe 5336.54 is the answer.
Step-by-step explanation:
<h3>
Exact Area = 1200 - 300pi square cm</h3><h3>
Approximate Area = 257.522203923062 square cm</h3>
Work Shown:
The area of the rectangle is 40*30 = 1200 square cm
Note how we have 4 circles along the horizontal dimension which is 40 cm, so each diameter is 40/4 = 10 cm, and the radius is 10/2 = 5 cm
Each circle has an area of pi*r^2 = pi*5^2 = 25pi
There are 4*3 = 12 circles, so the circle areas combine to 12*25pi = 300pi
Using a calculator, we find that 1200 - 300pi = 257.522203923062 approximately. Round this however you need to.