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The right answer is "A" (35 sq cm)
This is simpler than it looks.
The area of each triangle is 215∗20=150.
The unshaded part is simply the difference between 22∗150−230=35.
It's divided by two because the unshaded area is missing in both triangles.
Well done!
The trick is to notice the word identical.Students who fail to take note of it will find this impossible to solve.
Is your child brilliant at Math?
deleted by author
nice one. haven't seen such problems in the past years. and I don't miss them. :))and yeah, still smarter than a 12year old. Good to check this occasionally.
The right answer is "A" (35 sq cm)
This is simpler than it looks.
The area of each triangle is 215∗20=150.
The unshaded part is simply the difference between 22∗150−230=35.
It's divided by two because the unshaded area is missing in both triangles.
Well done!
The trick is to notice the word identical.
Students who fail to take note of it will find this impossible to solve.
Is your child brilliant at Math?
deleted by author
nice one. haven't seen such problems in the past years. and I don't miss them. :))
and yeah, still smarter than a 12year old. Good to check this occasionally.