Question

and please this also ​

Answer 1

1.18cm²

2. 5cm

3. all the sides r equal.

4. 20 cm

5. zero

6. dont know

7. 7

8.12

9. dont know

Answer 2

Step-by-step explanation:

1. solution

length ( l ) = 6cm

breadth ( b ) = 3cm

area ( a ) = ??

we know that,

area of rectangle = length × breadth

or , area = 6× 3

therefore, area = 18 cm square

2. 5 cm

3. in an equilateral triangle ( all ) sides are equal.

4. solution

length = 5 cm

perimeter = ??

we know that,

perimeter of square = 4l

= 4×l

=4×5

=20 cm

5. zero is neither prime or composite .

7. 5+(-9)+11

5-9+11

5+11 -9

16-9

7 answer

8. lcm of 4 3 and 6 is 12