Question

4. If perimeter of an equilateral
triangle is 180 cm then its area
will be
O 900 sq.cm
O 900V3 sq.cm
O 1800 sq.cm
O 600V3 sq.cm
Required​

Answer 1

Answer:

900sa.cm

Step-by-step explanation:

please follow me

Answer 2

Answer:

hi mate

here is your answer

please mark me as brainliest

Step-by-step explanation:

• perim. of equilateral triangle = 3a
• a= side
• 3a = 180 cm
• a = 60 cm.
• Heron's Formula:-
• 60+60+60/2
• s = 90
• √90(90-60)(90-60)(90-60)
• √90×30×30×30
• √90×30×(30)²
• √2700 × (30)²
• 30×30√3
• 900√3 cm² answer

hope this may help you