+600 Hi guys, I'm back, did u miss me? I'm just kidding. Ok guys my little bro is hving some difficulty answering a maths ques, and I can't seem 2 figure it out either so here it is:
A square has an area of 25cm2. What is the length and breadth of the square?
+118673 Hi Eloise,
Have you ever thought about why $${{\mathtt{7}}}^{{\mathtt{4}}}$$ is just 7 to the power of 4 BUT
$${{\mathtt{7}}}^{{\mathtt{2}}}$$ is not usually called 7 to the power of 2? $${{\mathtt{7}}}^{{\mathtt{2}}}$$ is usually referred to as 7 squared.
$${{\mathtt{cm}}}^{{\mathtt{2}}}$$ literally means a square that is 1cm by 1cm big.
The area of a flat shap is the number of SQUARES that you can fit inside the shape.
So if a square has an area of 25 $${{\mathtt{cm}}}^{{\mathtt{2}}}$$ Then it must look like this.
You can count the little squares. Each one is 1cm by 1cm in size so each one is 1cm^2
There are 25 of them.
the area of a square is Length x Length
$$\\L * L = L^2\\\\
L^2=25\\\\
\sqrt{L^2}=\sqrt{25}\\\\
L=5 cm$$
+1316 If it is a square then just take the squareroot of the area to find the side length. It is the squareroot of 25 so the sides are 5 cm.
+118673 Hi Eloise,
Have you ever thought about why $${{\mathtt{7}}}^{{\mathtt{4}}}$$ is just 7 to the power of 4 BUT
$${{\mathtt{7}}}^{{\mathtt{2}}}$$ is not usually called 7 to the power of 2? $${{\mathtt{7}}}^{{\mathtt{2}}}$$ is usually referred to as 7 squared.
$${{\mathtt{cm}}}^{{\mathtt{2}}}$$ literally means a square that is 1cm by 1cm big.
The area of a flat shap is the number of SQUARES that you can fit inside the shape.
So if a square has an area of 25 $${{\mathtt{cm}}}^{{\mathtt{2}}}$$ Then it must look like this.
You can count the little squares. Each one is 1cm by 1cm in size so each one is 1cm^2
There are 25 of them.
the area of a square is Length x Length
$$\\L * L = L^2\\\\
L^2=25\\\\
\sqrt{L^2}=\sqrt{25}\\\\
L=5 cm$$
