It is less than 100 and greater than 10. you use a 12 base then blocks to show this number the number of tens blocks is less than the number of blocks. one of the digits is 8

Urgent? will give brainliest given that the blue triangle is a right triangle, which expression correctly gives the area of the red square? a) a2 + b2 b) a2 - b2 c) a2 - c2 d) c2 - a2