1) What triangle is used when it comes to Pythagoras theorem? a) Obtuse triangle b) Right-angled triangle c) Scalene triangle d) Isosceles triangle 2) Is this a right-angled triangle a) Yes, obviously b) It could be c) No, not possible 3) Which formula is correct? a) r2 = x2 + y2 b) r = x + y c) r2 = x + y2 d) r2 = x2 + y 4) Is this visual proof correct? a) Yes b) No 5) Is the longest side always opposite the 90 degree angle? a) No b) Yes 6) A right angle has three sides named? a) Hypotenuse, adjacent, opposite b) Hypotenuse, leg a, leg b c) It only has two sides 7) Is this triangle right - angled? a) What is this even? b) I am confused c) Yes d) No 8) The sum of a triangle is always 180 degrees. a) That is correct b) No, it is 270 degrees c) It is 90 degrees d) I give up 9) A right angle is always 90 degrees, no matter how big the triangle is? a) No, the size changes it b) Yes, always! 10) What is the longest side called in a right angle triangle? a) Adjacent b) There is no name c) Pythagoras  d) Hypotenuse

Trigonometry quiz!!

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