We know that
lateral area=3*[area of a equilateral triangle]
Applying the law of sines to calculate the area of a equilateral triangle
Area=(1/2)*a*b*sin C
a=4
b=4
C=60 degrees
area equilateral triangle=0.5*4*4*sin 60-----> 0.5*4*4*√3/2---> 4√3 units²
lateral area=3*[4√3]----> 12√3 units²
the answer is
12√3 units²
Answer:
<u>
3.582</u>
Step-by-step explanation:
Find the number in the thousandth place 2 and look one place to the right for the rounding digit 3
. Round up if this number is greater than or equal to 5 and round down if it is less than 5
.
3.582
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Answer: 70.47%
100% - 13% = 87%
19% of 87% = 16.53%
remaining percent
= 87% - 16.53%
=70.47%