Given
A triangle.
with vertices at (−2, 1) , (2, 1) , and (3, 4)
Find out the area of a triangle.
To proof
Formula
As given the vertices at (−2, 1) , (2, 1) , and (3, 4)
put in the above equation
we get
![= \frac{1}{2} [-2(1-4)+ 2 (4-1) + 3 ( 1-1) ]](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B1%7D%7B2%7D%20%5B-2%281-4%29%2B%202%20%284-1%29%20%2B%203%20%28%201-1%29%20%5D)
solving
![= \frac{1}{2} [6 + 6]](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B1%7D%7B2%7D%20%5B6%20%2B%206%5D)
thus
![=\frac{1}{2} [12]](https://tex.z-dn.net/?f=%3D%5Cfrac%7B1%7D%7B2%7D%20%5B12%5D)
area of the triangle is 6 units².
Hence proved
30 country albums because if you divide 45 by 3 you get 15 which is 1/3 of the whole thing. Add another 15 and you get 30 which is 2/3 of it.
4 tootsie rolls, 3 lollipops, 5 hersheys kisses, 6 starbursts......for a total of 18 pieces of candy.
now...there are 3 lollipops.....and 18 total pieces of candy.....so the probability of selecting a lollipop is : 3/18 which reduces to 1/6
Answer:
The bells ring again together at 6:30
Step-by-step explanation:
10 minute bell
6 6:10 6:20 6:30 6:40 6:50
15 minute bell
6 6:15 6:30
The bells ring again together at 6:30
9514 1404 393
Answer:
A. 2 square feet
B. draw a diagonal; 1 square foot
Step-by-step explanation:
A. The area of a parallelogram is given by the formula ...
A = bh
Here the base (b) is 3 feet, and the height (h) is 2/3 ft. The area is ...
A = (3 ft)(2/3 ft) = 2 ft^2 . . . . area of the parallelogram
__
B. <em>Drawing a diagonal</em> (AC or BD) will divide the figure into two congruent triangles. Each triangle has the same base and height as the original parallelogram. The area of one of the triangles is given by ...
A = 1/2bh
Using the given dimensions, ...
A = 1/2(3 ft)(2/3 ft) = 1 ft^2 . . . . area of one triangle
