These are on my brother's worksheet and my dad told him he had to get them done or he would be really mad. I don't remember a thing about math and he cant get them either. can you help with any of these??? Or at least help explain how i can do them myself.
1. What is the height of a triangle with base 10.5 cm and area 96.075 cm2?
2. What is the length of the base of a triangle with height 13 cm and area 130 cm2?
3. What is the height of a triangle with base 17 mm and area 93.5 mm2?
4. What is the length of the base of a triangle with height 8 mm and area 44 mm2?
5. What is the length of the base of a triangle with height 14.2 mm and area 173.24 mm2?
Enter a decimal.
6. What is the length of the base of a triangle with height 26 mm and area 195 mm2?
2006-09-21 01:16:36 · 7 answers · asked by Calamity 2 in Education & Reference ➔ Homework Help
1. What is the height of a triangle with base 10.5 cm and area 96.075 cm2? traingle area 1/2bh 1/2(10.5)h=96.075
5.25h=96.075 5.25h/5.25=96.075/5.25 h=18.3cm
2. What is the length of the base of a triangle with height 13 cm and area 130 cm2? again 1/2bh 1/2b13=130
6.5b/6.5=130/6.5 b=20cm
3. What is the height of a triangle with base 17 mm and area 93.5 mm2? 11cm
4. What is the length of the base of a triangle with height 8 mm and area 44 mm2? 22cm
5. What is the length of the base of a triangle with height 14.2 mm and area 173.24 mm2?
Enter a decimal. 24.4mm
6. What is the length of the base of a triangle with height 26 mm and area 195 mm2? 15mm
2006-09-21 01:23:38 · answer #1 · answered by autbrat 2 · 0⤊ 1⤋
Your dad shouldn't get mad unless the homework isn't done when it is supposed to. Before that though, he should help if your brother has a tough time with Geometry.
Those Greeks knew a thing or two about Geometry and a student who followed Plato named Euclid came up with and wrote The Elements of Geometry in 13 books.
One can easily calculate the answers if they understand the formulas in Euclidean Geometry.
For example, the area of the triangle is:
area of triangle = (1/2) base * height
Therefore:
height = area of triangle / (1/2)base or
base = 2 (area of triangle / height)
2006-09-21 08:41:02 · answer #2 · answered by callahan 2 · 0⤊ 0⤋
the area of a triangleis 1/2 of base x height. See the site below for a clear explanation with pictures. Hope this helps.
2006-09-21 08:22:41 · answer #3 · answered by bizime 7 · 0⤊ 0⤋
use formulas and work around the 1/2*Base*height=area
add up all the sides to get perimeter
and then if you need to find height when theres area divid the area but 1/2*base
2006-09-21 08:27:01 · answer #4 · answered by mathborg3691 2 · 0⤊ 0⤋
formula:
A=base x height/2
1.h=2A/b
=2(96.075)/10.5
=18.3 cm
2.b=2A/h
=2(130)/13
=20 cm
3.h=2A/b
=2(93.5)/17
=11 mm
4.b=2A/h
=2(44)/8
=11 mm
5.b=2A/h
=2(173.24)/14.2
=24.4mm
6.b=2A/h
=2(195)/26
=15 mm
i'm glad to help you...
2006-09-21 08:30:40 · answer #5 · answered by ***fun$uck3r*** 2 · 0⤊ 0⤋
I am not going to answer them because then he will never learn how to do it, but this website can help
http://math.com
2006-09-21 08:22:51 · answer #6 · answered by jsweit8573 6 · 0⤊ 0⤋
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2006-09-21 08:27:35 · answer #7 · answered by Ghost 2 · 0⤊ 1⤋