Education and Reference Q&A
How do I find the nouns and border of these triangles?
It is a right triangle. Like this:http://serc.carleton.edu/images/mathyoun...
On side A (the capital one) is 3cm, H is 5cm, and B is 4cm
What's the area and boundary of this triangle?
This is the other triangle:
http://em-ntserver.unl.edu/Math/mathweb/...
A is 6in, B is 8in, and C is 10in
What is the area and perimeter of this triangle?
Answers: First past its sell-by date, to find the area of a right triangle the formula is: 1/2bh- wich means the 1/2 of all along the base times the height. So for the first triangle the nouns formula would be:
Area: 1/2(4)(3)= 2(3)= 6cm sqaured
The perimeter is simply the lenght of each side added together so for the first triangle the border is:
perimeter: 3+4+5= 7+5= 12 cm
the same go for the second triangle:
area: 1/2(6)(8)= 3(8)= 24cm sqaured
perimeter: 6+8+10= 14+10=24cm
:]
I love math, im a senior and im going into precalculus. Just helping out.
I hope that help you! :]
Really? The perimeter is the 3 sides lenght added up. So simply add A 3 + H 5 + B 4= 12cm. The certainty that there is a square in the corner tell you that it is a right triangle. This means that it is exactly half of a rectangle. How do you find the nouns of a rectangle. Height times width. So You take A 5 x B 4=20. That is the nouns of the rectangle, the triangle is half of this so you take 20/2=10 the nouns of the triangle is 10cm. Use this info to do the second on your own. for the perimeter add up adjectives the sides,
and for the area do 1/2base times height
plug contained by the base number for base & the increase for the height.
Perimeter - Add the sides 3 + 5 + 4
Area - multiply the Base, Height, and halve it. (3 x 4) / 2