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Question
primary 5 | Maths
| Area & Volume
2 Answers Below
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I don't know how to do this without a calculator
Date Posted: 5 years ago
Views: 805
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Ok, what is a common thing you know about squares? All 4 sides are equal and the area of a square is a multiplication of
One side x one side
So, what same number multiplied by that same number gives you 81 and 49?
It would be:
9x9=81
&
7x7=49
Now you have found the base and height of your triangle.
The area of a triangle is 1/2 x base x height.
So,
1/2 x 7 x 9 =31.5 and you would get your answer of the area of the triangle
One side x one side
So, what same number multiplied by that same number gives you 81 and 49?
It would be:
9x9=81
&
7x7=49
Now you have found the base and height of your triangle.
The area of a triangle is 1/2 x base x height.
So,
1/2 x 7 x 9 =31.5 and you would get your answer of the area of the triangle
Thanks for the help
No problem :)
done
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Hope this helps
Date Posted:
5 years ago
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