If the area of an equilateral triangle is
253 m², find its perimeter
and attitude
correct to these significant figures
Answers
Answered by
3
30m and 8.66m
Step-by-step explanation:
area of an equilateral triangle =√3/4xside²
here,
____________
side=. / 25√3 X 4
√ √3
=√25x4(√3 will cancel out with denominator)
=√100
=10m²
Perimeter of the triangle,
=side x 3
=10×3
=30m²
In that figure,
AOB or AOC = hy²=p²+b²
=10²=p²+5²
=p =√10²-5²
=p=√100-25
=p=√75
=p=8.66
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