Answer:
4√3 cm^2
Step-by-step explanation:
30 60 90 right triangle
The ratio of short leg : long leg : hypo. = x : x√3 :2x
Given Hypo BC = 4 = 2 * 2
so Long leg = 2√3
Area of ABC = 1/2 (b)(h)
= 1/2 (4)(2√3)
= 4√3
Answer
4√3 cm^2
Perimeter = 3 x 4 = 12 cm (you asked from other, so I answered for you as well)
The new dimensions of the new rectangle is length 8 inches and width 10 inches.
<h3>How to find width of a rectangle?</h3>
- Perimeter = 26 inches
- Length = 8 inches
- Width = x inches
Perimeter of a rectangle = 2(length + width)
26 = 2(8 + x)
26 = 16 + 2x
26 - 16 = 2x
10 = 2x
x = 10/2
x = 5 inches
New rectangle
= 10 inches
Therefore, the new dimensions of the new rectangle is length 8 inches and width 10 inches.
Learn more about perimeter of rectangle:
brainly.com/question/24571594
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The answer is x=-1 if this helps
The property for that one is Associative property
