Triangle Area using Trigonometry

Find each of the following, then find the area of the triangle using the formula A=\frac{1}{2}bh. Round side lengths to the nearest tenth. Use your rounded values to calculate the area, also rounded to the nearest tenth.

AC= u

BC= u

BD= u

Area \triangle ABD= u^2

Find each of the following, then find the area of the triangle using the formula \frac{1}{2}bh. Round side lengths to the nearest tenth. Use your rounded values to calculate the area, also rounded to the nearest tenth.

AC= u

CD= u

BD= u

Area \triangle ABD= u^2

Find each of the following, then find the area of the triangle using the formula \frac{1}{2}bh. Round side lengths to the nearest tenth. Use your rounded values to calculate the area, also rounded to the nearest tenth.

AC= u

CD= u

BD= u

Area \triangle ABD= u^2

Find each of the following, then find the area of the triangle using the formula \frac{1}{2}bh. Round side lengths to the nearest tenth. Use your rounded values to calculate the area, also rounded to the nearest tenth.

(In the picture, \angleBAC is 36\degree.)

AC= u

CD= u

BD= u

Area \triangle ABD= u^2

Find each of the following, then find the area of the triangle using the formula \frac{1}{2}bh. Round side lengths to the nearest tenth. Use your rounded values to calculate the area, also rounded to the nearest tenth.

AC= u

BC= u

CD= u

BD= U

Area \triangle ABD= u^2

Find each of the following, then find the area of the triangle using the formula \frac{1}{2}bh. Round side lengths to the nearest tenth. Use your rounded values to calculate the area, also rounded to the nearest tenth.

(In the picture, m\angle{ADC}=69\degree.)

AC= u

BC= u

CD= u

BD= u

Area \triangle ABD= u^2

Find the height and area of the equilateral triangle below. Leave your answers in simplest radical form.

height= cm

Area=cm^2

Find the height and area of the equilateral triangle below. Round your answers to the nearest tenth.

base= cm

Area=cm^2