Copyright c by holt rinehart and winston 55 holt geometry all rights reserved copyright c by holt rinehart and winston 19 holt geometry all rights reserved . Holt mcdougal geometry 8 3 solving right triangles example 5 travel application a highway sign warns that a section of road ahead has a 7 grade to the nearest degree what angle does the road make with a horizontal line change the percent grade to a fraction a 7 grade means the road rises or falls 7 ft for every 100 ft of horizontal . Holt mcdougal analytic geometry practice a solving right triangles in exercises 1 3 fill in the blanks to complete the description of the inverse trigonometric ratios 1 if sin a x then sin 1 x 2 if cos a then cos 1 x m a 3 if tan a x then m a use the given trigonometric ratio to determine whether. Holt mcdougal geometry reteach solving right triangles holt mcdougal geometry reteach solving right triangles continued to solve a triangle means to find the measures of all the angles and all the sides lesson x x 8 22 8 3 cs10 g mecr710624 c08l03dindd 22 4 8 11 105614 am. Lesson 8 3 practice a solving right triangles in exercises 1 3 fill in the blanks to complete the description of the inverse trigonometric ratios 1 if sin a 5 x then sin 21 x 5 m a 2 if cos a 5 x then cos 21 x 5 m a 3 if tan a 5 x then tan 21 x 5 m a use the given trigonometric ratio to determine whether 3 ft 4 ft 5 ft 1 2 1 or 2
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