Question

(iii) 28 cm R 28 cm 28 cm Centre find the area of the shaded region
​

Answer 1

Answer:

The area of the shaded region is 192.5 cm².

Step-by-step explanation:

It is given that,

AB= 28 cm,

Also, AQ = 1/4 x AB = 1/4 × 28 = 7 cm.

Now,

BQ AB-AQ = (28-7) cm = 21 cm.

Area of semicircle on AQ = 1/2x² =1/2x22/7×7/2x7/2=77/4 cm²

Area of semicircle on BQ =1/2TR² -1/2×22/7×21/2x21/2 = 693/4 cm²

Now area of the shaded region =Area of semicircle on AQ + Area of semicircle on BQ

=(77/4+693/4) cm² -770/4 cm² -192.5 cm²

Please mark me as brainlist

Answer 2

Area of shaded region is

=2 × 22/7 × 28

=2 × 22 × 4

=176 cm²