Question
In ∆ABC , G is the centroid , AB = 8 cm, BC= 12 cm and
AC = 14 cm , find GD, where D is the mid-point of BC?Solution
If AD is the median, then we know, AB² + AC² = 2{AD² + (BC/2)²} or 82 + 142 = 2{AD 2 + (12/2) 2 } or 64 + 196 = 2{AD 2 + 36} or 260/2 = AD 2 + 36 or 130 = AD 2 + 36 or AD 2 = 130 – 36 = 94 or AD = √94 = √94 Now G divides median in 2:1 so GD = 1/3 of AD = 1/3 of √94 = √94/3cm
In each question below, four words that are numbered a, b, c, and d have been printed of which one may be wrongly spelt. The number of that word is the ...
In the question below, a sentence is given with four words highlighted in bold. One of these four words may either be wrongly spelled or inappropriate ...
- In each sentence below four words have been printed in bold which are labeled as (A), (B), (C) and (D) One of these words may be misspelt or inappropriate ...
- In each sentence below four words have been printed in bold which are numbered (1), (2), (3) and (4) One of these words may be misspelt or inappropriate in...
- In each sentence below four words have been printed in bold which are labeled (a), (b), (c) and (d ) One of these words may be misspelt or inappropriate in...
In FY24, municipal corporations in India are istimated to generate 50% of their revenue from their own taxes, fees, and user charges.
...In the following question, four words are given, out of which only one word is correctly spelt. Find the correctly spelt word.
The Board recalled that the measures adopted are “provisional” and aim to “preserve the interests of the group and ensure the continuty of the ope...
Directions: In each question below, four words printed in bold type are given. These are numbered (A), (B), (C) and (D). One these words printed in bol...
- In each sentence below four words have been printed in bold which are labeled as (A), (B), (C) and (D) One of these words may be misspelt or inappropriate ...
