eviepoll005
eviepoll005 eviepoll005
  • 17-10-2020
  • Mathematics
contestada

An equilateral triangle has a side length of 16 cm work out the area of the triangle.
Give your answer rounded to 1 DP.

Respuesta :

jimrgrant1 jimrgrant1
  • 17-10-2020

Answer:

110.9 cm²

Step-by-step explanation:

The area (A) of an equilateral triangle is calculated as

A = [tex]\frac{s^2\sqrt{3} }{4}[/tex]  ( s is the side length )

Here s = 16, thus

A = [tex]\frac{16^2\sqrt{3} }{4}[/tex]

   = [tex]\frac{256\sqrt{3} }{4}[/tex] = 64[tex]\sqrt{3}[/tex] ≈ 110.9 cm² ( to 1 dec. place )

Answer Link

Otras preguntas

3) What measurement is largest? Circle ur answer of each pair. I need help with this
if 3x-8= -2, find the value of x-6
The sum of three consecutive odd integers is 195. Find the three integers.
The sum of two consecutive even integers is -118 find two integers
Marcy played the piano for 45 minutes. She stopped playing at 4:15 p.m. At what time did she start playing the piano?
Which area of the United States and Canada suffer most from acid rain, deforestation, chemical or nuclear toxic waste, and flooding?
solve the systems of equations  4a+7b=5, 8a-4c=-24, 6b-4c=26, solution is ___,___,_____.
Which is greatest and which is least? 9.9, 9.09, 9.990? Using the digits 0, 4, 7, and 9 write the greatest decimal possible, in thousandths Using the digits 0,
How do I find the acceleration?
what is the number 21 a prime or composite