Answer:
100 cm²
Step-by-step explanation:
Length of square (L) = 10 cm
Area of square = L² = (10)² = 100 cm²
Answer:
Step-by-step explanation:
The formula for the area of the triangle is :
To work this out you would first need to break the shape down into 4 smaller triangles.
Then you would need to work out the area of the triangles. You can do this by multiplying the base by the height and dividing it by 2. We will first work out the area of the first triangle at the top. To work out the area you would multiply the base of 7.5 by the height of 7.5, this gives you 56.25. Although the formula says you should divide the answer by 2 however as there are two identical triangles this action does not need to be done.
The next step is to work out thew area of the bottom triangles. To do this you would multiply the base of 7.5 by the height of 16, this gives you 120.
Now that we have found the area of both sides of the kite we can now add the values of 56.25 and 120 to work out the full area of the kite, this gives you 176.25 square inches.
1) Break the kite into smaller triangles.
2) Work out the area of the triangles at the top.
3)Work out the area of the triangles at the bottom.
4) Add the area of both sides.
Answer:A) 2
Step-by-step explanation:
Answer:
<em>Colin will have to wait for 2 hours for the pond to completely empty</em>
Step-by-step explanation:
<u>Volume of a Prism</u>
The volume of a prism of base area Ab and height H is computed with the formula:
V=Ab.H
We are given a pond in the shape of a prism with a trapezoidal base (front view).
The area of a trapezoid of bases b1 and b2, and height a, is given by:
The parallel bases of the trapezoid have measures of b1=0.6 m and b2=1.4 m, and the height is a=2 m, thus the area is:
The height of the prism is H=1m, thus the volume of the pond is:
It's also known the level of the pond goes down by 20 cm (0.2 m) in the first 30 minutes. Note at this moment the level is still at the rectangular prism zone of the pond, thus the volume of water is calculated as the area of the face of water by the height it went down:
The pond still has this volume of water:
The pond was drained in 30 minutes, thus the rest of the water will be taken out in
Thus, Colin will have to wait for 2 hours for the pond to completely empty
Answer:
Sorry need points.
Step-by-step explanation: