Find the area of this shape giving brainliest please help
1 answer:
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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
solving
thus
area of the triangle is 6 units².
Hence proved
Given:
Length of sandbox (l)= 3 m
Breadth (b) = 2 m
Height (h) = 1 m
Cost of sand for the sand box = $4.50 per cubic meter.
To find:
The cost to completely fill the sandbox with sand.
Solution:
Volume of cuboid is
So, volume of sand box is
So, we need 6 cubic meter sand to fill the sandbox completely.
Cost of one cubic meter of sand for the sand box = $4.50
Cost of 6 cubic meter of sand for the sand box = 6 × $4.50
= $27
Therefore, the cost to completely fill the sandbox with sand is $27.