You can put this solution on YOUR website!
If 15^2 = 9^2 +12^2, the triangle satisfies the Pythagorean Theorem for a right triangle.
Is (15^2 = 81 + 144)?
Is (225 = 225)? Yes
Therefore the given triangle is a right triangle. Let the vertex of the right angle be C, the leg AC is 12, the hypotenuse AB is 15 and the leg BC is 9. The line perpendicular to the hypotenuse at a point D that connects to the vertex C is the "height" of the triangle ABC. It can be shown that the three angles of the triangle ABC are equal to those of triangle CBD. Thus triangle ABC is similar to CBD. The problem is to find the lenght of the line CD.
Using proportions of corresponding sides we have
CD/9 = 12/15
CD = 9*12/15
CD = 36/5
Answer: the line is 7.2 cm.
Angle 2 would also equal 75 degrees because it corresponds to angle 6 when lines are parallel.
Ok so to figure out the area of a triangle its in this case 4 times 2 then divided by 2 so the 2 triangles are (4 times 2= 8, 8 divided by 2= 4) 4 so the area so far if each triangle is 4 (4+4=8) would be 8 then the rectangle in the middle is 5 inches becuase the rectangle+ triangle is 7 so its -2 from the trinagle making it 5 so now you have 5 times 4 which equals 20 now you have 20+8=28 so your answer is 28.
i cant see the entire question im sorry i dont understand what its asking