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Rom4ik [11]
3 years ago
10

What is the area of the triangle in the figure

Mathematics
2 answers:
Nezavi [6.7K]3 years ago
3 0
The first leg is 4, the second leg is 6. Area= 4*6/2 = 24/2= 12
Your answer is 12mm^2
Marina CMI [18]3 years ago
3 0
Logic geometry. Ah, textbooks.

Flip dat triangle!

Turn in onto its base. 

<span>My Geometry teacher used to say, "My students, ahh. Textbooks. They say, 'My pretty little students, here's a formula! I will give you numbers and you plug it in.' Then he would say, 'I don't like textbooks. I'm a rebel! So, I derive the formula.'" He made us derive it. But the formula is this: 1/2 x b x h. Why? The real formula is because two equal triangles are both HALF of a parallelogram, and a parallelogram has formula b x h. So it's 1/2 x b x h.
</span>
With that in mind, let's find the height first. Onwards!!

12 mm. What can we do with it? Oh, we know the rectangle has 8 mm!! 12 mm - 8 mm is 4 mm! The height is 4 mm. Onwards to the base!!

Hey, what do we know? The rectangle has length 10 mm. A part of it is 4 mm!! So, what's 10 mm - 4 mm? 6 mm. We got it!!

Plug in the formula!!

1/2 x 4 x 6 is????????

12.

And don't forget the mm!!
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