9514 1404 393
Answer:
- perimeter: 22.81 units
- area: 24 square units
Step-by-step explanation:
The lengths of the sides can be found using the distance formula.
d = √((x2 -x1)^2 +(y2 -y1)^2)
AC = √((0 -(-2))^2 +(8 -2)^2) = √(4+36) = 2√10
BC = √((0 -6)^2 +(8 -2)^2) = √(36+36) = 6√2
The distance AB is the difference of the x-coordinates of the points: 6-(-2) = 8.
Then the perimeter is ...
P = a + b + c = 6√2 +2√10 +8 = 8.49 +6.32 +8 = 22.81 . . . units
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The height of the triangle is the difference in y-values between vertex C and line AB: 8 -2 = 6. The area is given by the formula ...
A = 1/2bh
A = 1/2(8)(6) = 24 . . . square units
Answer:
Im so sorry, I dont know the answer and accidentally clicked on it. It wont let me get out of this... SO SORRY!
Step-by-step explanation:
none
The area of the square can be found by...
0.75 • 0.75 = .5625
The area of one triangle can be found by...
1/2 • 0.8 • 0.75 = .3
In order to find the total surface area of the figure, you must...
.5625 + 4(.3) = 1.7625
So the answer is D