If the perimeter of an equilateral triangle is 30 cm ,then the area is
Answers
Answered by
1
Answer:
50 cm2
Step-by-step explanation:
An equilateral triangle has equal sides, so we divide 30 cm by 3 to get each side is 10 cm.
Then we use the formula for the area of a triangle.
(b × h)
= 1/2 (10*10)
=1/2 of 100
=50
Answered by
2
Answer:
under root 3 multiply 25
Step-by-step explanation:
perimeter=30 cm = 3(sides) side=30/3=10 cm area=sq.rt.3/4(side)^2 area=sq.rt.3/4 X 10^2 area=sq.rt.3/4 X 100 area=sq.rt.3 X 25
area = 25(square root 3)
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