please answer fast. correct answer will be Marked as brainlest
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2
Answer:
Ans is 63 as formula will be 1/2*base *height
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2
Answer:
12 answer is 18 and
Step-by-step explanation:
area of an equilateral triangle formula=✓3/4
9✓3/4=✓3/4asquare
9✓3•4/✓3=a squre
✓36=a
a=6
perimeter=3•6=18
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