Question

Find BC to the nearest tenth. will give brainilist

Answer 1

Answer:

BC = 20.7

Explanation:

• Formula used: a² = b² + c² - 2bc*cos(A)

Using the formula:  BC² = 15² + 13² - 2*15*13*cos(95)

                                BC² = 427.991

                                BC = √427.991

                                BC = 20.7 units