Question

Please help cus I don’t know

Answer 1

Its B. 53

Explanation:

To find the unknown angel you need to add the number you already have AKA 43 and 84 you need to add up to 180 so 43+84+53= 180

Answer 2

D) 53°

Explanation:

All interior angles of any triangle add up to 180°

? = 180° - 43° - 84°

? = 53°