### Home > PC > Chapter 1 > Lesson 1.3.1 > Problem 1-98

1-98.

Given Δ

*DOG*, where ∠*D*= 64°, ∠O = 38°, and*DO*= 8 inches. Homework Help ✎Draw a diagram roughly to scale.

Solve the triangle completely.

Calculate the area of Δ

*DOG*.

Make a chart like the one below. It helps you quickly 'see' what needs to be figured out as well as helping you quickly find a strategy.

Determine the measure of angle *G* first. Then use the Law of Sines to calculate the missing side lengths.

Draw a height from vertex *G* ⊥ to side *OD*.

Using your calculation for side *o* and the sine function for angle *D*, find the height. Then use the area formula for a triangle.