Question

Please help me asap!

Answer 1

Answer: 1. ∠A= 80.75° 2. 41.79
`cm^2`

Explanation:

Since, According to the sines low,

`(sin A)/(CB) = (sin C)/(AB)`

Here, CB= 4.1 cm, AB = 3.3 and ∠ C = 52.6°

`(sin A)/(4.1) = (sin 52.6)/(3.3)`

⇒
`sin A = 4.1*(sin 52.6)/(3.3)`

⇒
`sin A =0.98699998308`

⇒ A = 80.75°

2. Since, the area of the given figure = Area of the rectangle having dimension 8.3 × 4.2 + Area of the half square of radius 2.1

=34.86 + 6.93

= 41.79 square cm