evaldez2002ev75 evaldez2002ev75

21-12-2019
Mathematics

contestada

What is the area of an equilateral triangle that has a perimeter of 36 centimeters? Round to the nearest square centimeter.

What is the area of an equilateral triangle that has a perimeter of 36 centimeters Round to the nearest square centimeter class=

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nonsibi nonsibi

21-12-2019

Find base and height of the triangle to find area.

Base=Perimeter/3

Base=36/3=12 cm

Height²=12²-6²

Height²=108

Height=(6√3) cm

area=base×height

area=1/2×12×6√3=62 cm² approx.

answer: 3rd choice

Answer Link

jaylonmoody03 jaylonmoody03

08-02-2021

Answer:

Find base and height of the triangle to find area.

Base=Perimeter/3

Base=36/3=12 cm

Height²=12²-6²

Height²=108

Height=(6√3) cm

area=base×height

area=1/2×12×6√3=62 cm² approx.

answer: 3rd choice

Step-by-step explanation:

Answer Link

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