Why are 1, 3, 6, 10, 15, 21, 28, 36, .... called triangular numbe… - Vidyadip

Question

Why are 1, 3, 6, 10, 15, 21, 28, 36, .... called triangular numbers?

✓

Answer

Number of dots equal to any triangular number can be arranged perfectly in triangular form.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from PATTERNS IN MATHEMATICS [NEW]→PATTERNS IN MATHEMATICS [NEW] — all question types→MATHS STD 6 question papers→Gujarat Board STD 6 question papers→Gujarat Board question paper generator→

Similar questions

Subtract as indicated:
$\frac{29}{7}$ from $\frac{45}{7}$

Test the divisibility of: $10203574$ by $4$

Determine the sum by suitable rearrangements:
$2359 + 1000 + 2641 + 9999$

$\frac{5}{8}-\frac{3}{8}$

In the following numbers, replace $*$ by the smallest number to make it divisible by $9:$
$6702*$

Find the perimeter of the following shape: A triangle whose sides are $5.4\ cm, 4.6\ cm$ and $6.8\ cm.$

If $\Delta$ is an operation on integers such that $\text{a }\Delta\text{ b}=-\text{a}+\text{b}-(-2)$ for all integers a, b. Find the value of: $4\ \Delta\ 3$

Determine the $L.C.M$ of the numbers given below: $56, 65, 85$

Write of the following as decimals: $\frac{888}{1000}$

Find the ratio of the following in the simplest form: $35$ minutes to $45$ minutes.