Secondary I • 1yr.
I don't understand can you help please. The answer is c BTW . Idk how to find it.
I don't understand can you help please. The answer is c BTW . Idk how to find it.
Explanation verified by Alloprof
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Hello !
Thank you for your question !
You can find your missing height by making a similar triangle since you have a small triangle in a large triangle.
To do this you do : Big side of the triangle/ small side of the triangle
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Attention: very important to calculate the good sides between them.
Do not hesitate if you have other questions !
BrachiosaureTimide314
Here are my explanations
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Hi! So when you have two similar shapes it means that the measures of each side of both figures are proportional. So here, you can see that the base of the big triangle measure 8cm (6+2), and the base of the small triangle is 2cm. What you do is you divide 8 by 2, which is 4. So it means that when you multiply a side of the small triangle by 4, you get the measure of that same side but for the big triangle. So here you need the height of the small triangle but you already have the height of the big triangle, so you do the opposite and you divide 10 by 4 and you get 2,5cm
I hope this helps!😃