Question
The lengths of two sides of a parallelogram are 3 cm and
10 cm. What is the sum of the squares of the diagonals of the parallelogram?Solution
Let the parallelogram be ABCD, AB = 3 cm BC = 10 cm CD = 3 cm DA = 10 cm Using the concept, The sum of the squares of the diagonals = (AB + BC + CD + DA ) ⇒ (32 + 102 + 32 + 102 ) ⇒ (9 + 100 + 9 + 100) ⇒ 218
Which two digits and signs can be interchanged so as to balance the given equation?
328 - 82 + 120 X 6 ÷ 41 = 646
If '+' means '-', 'X' means '+', '-' means '÷', and '÷' means 'X', then what is the value of the following expression? 120 - 10 + 60 X 5 ÷ 3 X 15
...If A denotes '+', B denotes ' X ', C denotes ' - ' and D denotes '÷', then what will come in place of '?' in the following equation?
117 D 13 B ...
- If '+' means '-', ' X ' means '+', '-' means '÷' and '÷' means ' X ', then what is the value of the following expression?
54 ÷ 6 X 117 - 9 + 68 If '+' means 'division', ' X ' means 'addition', ' - ' means 'multiplication' and '÷' means 'subtraction', then what is the value of the following expr...
If “+” means “minus”, “×” means “divided by”, “÷” means “plus”, and “-“ means then “multiplied by”
250 × 10 �...
If ‘*’ represents 12, '@' represents 48, '$' represents 24, and ‘!’ represents 6, then what mathematical equation below will be ...
In the following letter set, the second letter set is related to the first letter set in a certain way, find the letter set from the options which is r...
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
56 * 492 * 6 * 7 * 123 = 507
If ‘A’ means (÷), ‘B’ means (×), ‘C’ means (+), and ‘D’ means (-), then ____ is the value of the expression.
25 A 5 B 8 D 6 C 4...
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