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Number of triangles in the given figure is

निम्नलिखित प्रश्न का उत्तर (50-60 शब्दों में) लिखिए −

रामन् के प्रारंभिक शोधकार्य को आधुनिक हठयोग क्यों कहा गया है?

Find the probability of getting the difference of two numbers obtained as a prime number, if a pair of dice are thrown simultaneously.

(a) Identify terms which contain x and give the coefficient of x.

(i) y²x + y (ii) 13y²− 8yx (iii) x + y + 2

(iv) 5 + z + zx (v) 1 + x+ xy (vi) 12xy² + 25

(vii) 7x + xy²

(b) Identify terms which contain y² and give the coefficient of y².

(i) 8 − xy² (ii) 5y² + 7x (iii) 2x²y −15xy² + 7y²

Fill in the blanks with suitable answers:

(1) The total number of numerals used in base 10 system is ………

(2) Total numerals used in base-2 system is ……..

(3) The biggest numeral used is base 10 system is ……

Question 1(c)
Evaluate the following
(- 36) $÷$ (- 9)

If a = 2 and b = 3, find the value of $(a^b{)}^a$.

Question 43

2500 is greater than 500 by ___ %

Tap on the bubbles which add up to 9.

Question 4 (i)
Given three side of a triangle can be the sides of a right angled triangle or not?
2.5 cm, 6.5 cm, 6cm
In case of right angled triangle, identify the right angle.

Question 109 (i)

At a toy shop price of all the toys is reduced to 66 % of the original price.What is the sale price of a toy that originally costs Rs. 90?

Let's a thief is running on a train with 12 km per hour. Police car is made with 80 kilometre per hour. If speed of the train is 60 km per hour. What is the speed of the thief with reference to police car?

The probabilities of a student getting grade A, B, C and D are 0.2, 0.3, 0.15 and 0.35 respectively. Then the probability that a student gets at least C grade is:

Subtraction of $pq+6p^2-2q^2$ from $9p^2+2pq-3q^2$ will give the expression .

1. 5

How many variables are present in the given expression $5x+6$ ?

Rina’s brother found a match box and he counted the number of matchsticks in it. He found out that there were 42 matchsticks. He now went to Rina and asked her the number of 8’s she can make using the available matchsticks.What could be Rina's answer?

In triangles ABC and DEF, addition to the markings, AF = CD and AB || DE. Which of the following methods can NOT be used to prove the triangles congruent?

Question 33

Which of the following is not the reciprocal of ${\left(\frac{2}{3}\right)}^4$ ?

(a) ${\left(\frac{3}{2}\right)}^4$

(b) ${\left(\frac{3}{2}\right)}^{-4}$

(c) ${\left(\frac{2}{3}\right)}^{-4}$

(d) $\frac{3^4}{2^4}$

Complete the missing algebraic expression. Add the adjacent cells to get the value in row above.

A car's number plate was to be painted equally in blue and red as shown in the figure. What will be the total cost of painting the car's number plate if the red paint costs Rs 2 per $c{m}^2$ and the blue paint costs Re 1 per $c{m}^2$?

Find the value of $x$.

$\frac{-x}{6}+\frac{1}{6}=2$

If ΔABC
and ΔPQR are to be
congruent, name one additional pair of corresponding parts. What
criterion did you use?

Identify
the operations (addition, subtraction, division, multiplication) in
forming the following expressions and tell how the expressions have
been formed.

(a) z + 1, z − 1, y + 17, y −
17 (b)

(c) 2y + 17, 2y − 17 (d) 7m, − 7m
+ 3, − 7m − 3

If a quadrilateral has two or more lines of symmetry, it will have rotational symmetry of order more than ___ .

One half of the difference between 9 and 4 is added to three times 8 multiplied with half. Which of the following gives the numerical expression for the above statement?

What is the intersection point of the following lines drawn on the coordinate plane?

The reciprocal ratio of $1\frac{1}{2}:6\frac{3}{4}$ is

A shopkeeper buys 80 similar articles for ₹2400 and sells them at a profit of 16%. Find the selling price of each article.

What is the value of 0.25 % of 80?