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What capital letter has perpendicular lines?
the letter A, the letter V, the letter X is the best example. If by perpendicular you mean 90º, the answer is E, F, I, L, and T. A, V and X are not perpendicular, they are acute angles.
What is the value of x if the acute angles of a right triangle measure 8x and 12x?
If: 8x+12x = 90 Then: 20x = 90 And: x = 4.5
A hypotenuse and an acute angle define congruence?
Yes. If you know two angles of a triangle, then you know all three. Why? Because they sum to 180 deg. So you have the hypotenuse and the angles at either end then you have ASA. AAS may not be sufficient for congruence but ASA IS. Another way of looking at it: suppose the hypotenuse is h and the known acute angle is x. Then, the side adjacent to the angle is h*cos(x) while the side opposite is h*sin(x). So the two hypotenuses are of length h, the two sides adjacent to the known acute angle are h*cos(x) each and the sides opposite are h*sin(x). And all three pairs of angles are equal. What else do you need to show congruence?
How many right angles can a quadrilateral have?
a quadrilateral can have from 0 to 4 right angles. But it can't have exactly three right angles. The interior angles of a quadrilateral sum to 360 degrees. If it had three right angles and x were the measure of the fourth angle: 3*90+x=360 x=360-270=90 So if it has three right angles, the fourth angle would be a right angle as well.
What letters of the alphabet have a right angle and an acute angle?
If you are asking what letters have BOTH types of angles in the same letter, the answer is: only KThese letters have acute angles:Upper case letters: A K M N V W X Y ZLower case letters: k v w x y zThese letters have right angles:E F H I K L T and f t
