Into a triangle, with a base of 30cm and height of 10cm, has been drawn a right triangle (90°), such that it's hypotenuse is parallel to the given triangles base, and the 90° corner in the triangle is at its base. Calculate the hypotenuse of that 90° triangle.

What aspects of lines have to be diffrent

Part a what is the area of triangle i? show your calculation. part b triangles i and ii are congruent (of the same size and shape). what is the total area of triangles i and ii? show your calculation. part c what is the area of rectangle i? show your calculation. part d what is the area of rectangle ii? show your calculation. part e rectangles i and iii have the same size and shape. what is the total area of rectangles i and iii? show your calculation. part f what is the total area of all the rectangles? show your calculation. part g what areas do you need to know to find the surface area of the prism? part h what is the surface area of the prism? show your calculation. part i read this statement: “if you multiply the area of one rectangle in the figure by 3, you’ll get the total area of the rectangles.” is this statement true or false? why? part j read this statement: “if you multiply the area of one triangle in the figure by 2, you’ll get the total area of the triangles.” is this statement true or false? why?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles