Question

in class IV we have learnt about whole numbers and their basic
properties. Let us recall these facts through the following exercise.
REVISION EXERCISE
Fill in the blanks.
You are familiar with 1, 2, 3, 4, ...... They are called
2 All the natural numbers together with 'O' are called
3. "There is only one number that has exactly one factor namely
.. Numbers which have only two factors namely 1 and itself are called
. Composite numbers have more than
.. A number which is neither a prime nor a composite number is
The only even prime is ..
The numbers that are divisible by 2 are called
. Numbers that have a remainder 1 when divided by 2 are called ....
0. The difference of two odd numbers is always​

Answer 1

Answer:

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Answer

it is 20 cm2 .

triangle AXYand parallelogram ABCD lies on same base AB and between same parallels AB and CD.

hence; ar [triangle AXY] = 1/2 ar [parallelogram ABCD] - Theorem 9.2

ar [triangle AXY] = 1/2 * 40

= 20cm2