Find the side of an equilateral …
CBSE, JEE, NEET, CUET
Question Bank, Mock Tests, Exam Papers
NCERT Solutions, Sample Papers, Notes, Videos
Posted by Chandrababu Kausthubham 5 years, 11 months ago
- 4 answers
Yogita Ingle 5 years, 11 months ago
We know that perimeter of triangle is sum of three sides. and it is an equilateral triangle so all sides would be same let them be x cm
so,
x + x + x = 30
3 x = 30
x = 10
now we know area of equilateral triangle is {tex} \frac{ \sqrt{3} }{4} x^{2}{/tex}
now the side is 10 cm,
then
{tex}\frac{ \sqrt{3} }{4} 10^{2} {/tex}
area= {tex}43.3 cm^{2} or 25√3 cm^{2} {/tex}
Test
Related Questions
Posted by Shree Vanshika Reddy Reddy 8 months, 2 weeks ago
- 0 answers
Posted by Heena Khatun 1 year, 1 month ago
- 0 answers
Posted by Dipratna Salunke 1 year, 4 months ago
- 2 answers
Posted by Shree Vanshika Reddy Reddy 3 months ago
- 0 answers
Posted by Bhargav Panchal Shantilal Panchal 1 year, 4 months ago
- 2 answers
Posted by Shivanshu Pandey 1 year, 4 months ago
- 0 answers
Posted by Harsha Sarji.S 1 year, 2 months ago
- 0 answers
Posted by Vedika Chourasiya 1 year, 1 month ago
- 0 answers
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Khushi Patel 5 years, 11 months ago
0Thank You