Question

answer the questions in photo​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

Area of shaded region = Area of square - Area of 4 sectors of angle 90 each

                                      = (side)² - 4×πr² ∅/360

                                      = (21)² - 4×22/7 ×10.5×10.5×90/360

                                      = 441 - 4×22×1.5×10.5×1/4

                                      =  441 - 346.5

                                      = 94.5 cm²