Question
∆ABC and ∆DEF are similar and their areas are
respectively 121 cm2 and 144 cm 2 . If EF = 24 cm BC is?Solution
Ratio of perimeter of similar triangles = ratio of the corresponding sides of similar triangles. (area of ∆ABC)/(area of ∆DEF)=(BC/EF) 2 121/144 = (BC/24) 2 (11/12) 2 = (BC/24) 2 11/12 = BC/24 BC = (11 × 24)/12 = 22 cm
If the sign ‘×’ is interchanged with ‘÷’ and ‘–’ is interchanged with ‘+’, then what will be the value of the expression below?
...Select the correct mirror image of the given figure when the mirror is placed at MN as shown below.
If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’, ‘C’ stands for ‘+’ and ‘D’ stands for ‘−’, then what will come in place o...
In a year-end examination, 6 papers-Maths, Physics, Geography, Economics, Chemistry, History- are scheduled on 6 consecutive days of a week (Monday - Sa...
Select the word-pair that best represents a similar relationship to the one expressed in the pair of words given below. (The words must be considered ...
Which answer figure will complete the pattern in the question figure? (rotation is not allowed)
Which of the following groups of letters when sequentially placed from left to right will complete the given series?
jklmnojklmnoj_Imnojk_m_ojk...
Select the letter-cluster from among the given option that can replace the question mark (?) in the following series.
JQMN, NMQJ, ? , VEYB, ZAC...
Which two signs should be interchanged to make the given equation correct?
12 ÷ 2 × 6 + 4 – 2 = 13
If Ram works 3 times as fast as Shyam and is able to complete a work in 40 days less than the number of days taken by Shyam, then find the time (in days...
Relevant for Exams:
