Answer:
2x^2+7x-3
remainder is -4
Step-by-step explanation:
Check the image
Use the Pythagorean theorem
a^2 + b^2 = c^2
a^2 + 15^2 = 25^2
a^2 + 225 = 625
a^2 = 400
a = 20
Answer: 20 cm
Hope this helps!!
/////////////////////////////////////////////////////////////////////////////////////////////////////////////