3. 30 Degrees.
Draw 2 parallel lines, don't forget equilateral triangles and Isosceles Trapezoid and you'll find the answer.
Draw 2 parallel lines, don't forget equilateral triangles and Isosceles Trapezoid and you'll find the answer.
Hard Riddles and Math exercices
@Georges correct it's 30 degrees but m0ei gave all the answers already
#16
John visits Dave and asks him how old are each of your 3 children?
Dave replies:"The product of their ages is 36 and the sum of their ages is equal to my house number"
John says:"I still can't guess their ages, can you give me more hints?"
Dave says:"Oh yeah i forgot to tell you that my oldest son's birthday is next week and the two other's already passed weeks ago"
John:"Thanks now i know how old are you children"
-> How old is each of Dave's children?
#17
I don't know if this is hard for you... but it's hard for my level:
Integrate (tan x)^6 dx
#18
It's all over the internet try to explain by yourself the missing square
#16
John visits Dave and asks him how old are each of your 3 children?
Dave replies:"The product of their ages is 36 and the sum of their ages is equal to my house number"
John says:"I still can't guess their ages, can you give me more hints?"
Dave says:"Oh yeah i forgot to tell you that my oldest son's birthday is next week and the two other's already passed weeks ago"
John:"Thanks now i know how old are you children"
-> How old is each of Dave's children?
#17
I don't know if this is hard for you... but it's hard for my level:
Integrate (tan x)^6 dx
#18
It's all over the internet try to explain by yourself the missing square
Man, it was 2.30 am when i read this exercise. I didn't read any other posts by members.Ra8 wrote@Georges correct it's 30 degrees but m0ei gave all the answers already
Just the 1st post and i quickly thought of it and solved it.
For 17 the angles of the triangles are different and the difference in the two slopes is the square that's "missing"