Question

Please help! Find the área of the triangle .

Answer 1

67.97 cm²

Explanation:

The area (A) of the triangle is calculated as

A =
`(1)/(2)` bc sinA

with b = 15, c = 10 and A = 115°, thus

A = 0.5 × 15 × 10 × sin115° = 75 × sin115° ≈ 67.97 cm²

Answer 2

a= 75 cm

Explanation:

a= 10×15

150÷2

a= 75 cm