Sunday

November 23, 2014

November 23, 2014

Posted by **mota** on Friday, November 9, 2007 at 2:45pm.

(( distance between two points ))

the vertices of a right triangle are S(-2,-2), T(10,-2), and R(4,5). find the area of the triangle.

please in detales .. thank u

- math -
**Reiny**, Friday, November 9, 2007 at 5:13pmfirst of all, your triangle is not right-angled.

The slopes are 7/6, -7/6 and zero

None of these are negative reciprocals of each other, a condition for a right angle.

But the area is easy to find

Clearly the base ST = 12 units and the height from R to ST is 7

So the area = 1/2 x 12 x 7

= 42 units^2

- math -
**mota**, Saturday, November 10, 2007 at 2:21amthank u

- math -
**mota**, Saturday, November 10, 2007 at 2:49amcan u explain how u get the height ?

**Answer this Question**

**Related Questions**

math - I have a question in (( distance between two points )) show that A(4,2), ...

math - Plot the points A(2,2), B(4,6),C(10,-2)Notice that these points are ...

Math - Two vertices of a right triangle are (0,1) and (0,6). The area of the ...

isosceles triangle - An isosceles triangle is a triangle that has two equal ...

geometry - Theres a circle with an equilateral triangle in the middle. The ...

MATH - Triangle T has vertices A(-9, 10)B(1,0)and C(5,4). Points A, B, and P(...

math - The vertices of a triangle are listed below. H(-2,4), I(22,4), J(10,-1) ...

Math Geometry - A triangle has vertices P(a,b), Q(c,d), and R(e,f). You are ...

Vectors/Calculus - The question asks me to find the area of the triangle with ...

Precalculus - The sides of an isosceles triangle are 10 cm, 10 cm, and 12 cm. A ...