Please enter the following details
Free Daily Targets & Mocks
Study Material & Formulas PDFs
1 on 1 Mentorship
Question 110
On decreasing each side of an equilateral triangle by 2 cm, there is a decrease of 4√3 cm 2 in its area. The length of each side of the triangle is
Solution
Area of an equilateral triangle= $$(\frac{\sqrt3}{4})\times(a)^{2}$$
where a is side.
When a reduced to (a-2)
Area difference = 4$${\sqrt3}$$
$$(\frac{\sqrt3}{4})$$($$(a)^{2}-(a-2)^{2})$$= 4$${\sqrt3}$$
4a-4=16
a=5 (C)
Create a FREE account and get:
- Free SSC Study Material - 18000 Questions
- 230+ SSC previous papers with solutions PDF
- 100+ SSC Online Tests for Free
