The orange triangle's area is 30 because 1/2 times 6 times 10 is 30.The blue triangle's area is 30 because the right side is 6 for base because the orange triangle base is 6 and it aglines with the blue one so the right side blue triangle base is 6 times 10 times 1/2 equals 30 and the 2 left over for base of blue triangle's left side times 10 is 20 times 1/2 equals 10 so 10 plus 30 plus 30 equals 60 so your answer is 60.