Question

Find the approximate area of the triangle.

Answer 1

Answer:

The area of triangle is 19.8 square units

Option B is correct.

Step-by-step explanation:

Given the triangle ABC in which

AB=6.8 units, BC=5.9 units and ∠B=99°

we have to find the area of triangle.

c=6.8 units and a=5.9 units

The area of triangle can be calculated as

$Area=\frac{1}{2}ac\sin \angle B$

$=\frac{1}{2}\times 5.9\times 6.8\times \sin 99^{\circ}$

$=20.06\times \sin 99^{\circ}=19.813\sim 19.8 units^2$

The area of triangle is 19.8 square units

Option B is correct.

Answer 2

Answer:

B. 19.8 square units

Step-by-step explanation:

For this geometry an appropriate formula for the area is ...

area = (1/2)·a·c·sin(B) = (1/2)·(5.9 units)·(6.8 units)·sin(99°) ≈ 19.8 units²