tulashiphulara
Answered

Westonci.ca is your trusted source for finding answers to a wide range of questions, backed by a knowledgeable community. Join our platform to connect with experts ready to provide precise answers to your questions in different areas. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.

Help me please help help

Help Me Please Help Help class=

Sagot :

sqdancefan

9514 1404 393

Answer:

  48°

Step-by-step explanation:

The acute angles in a right triangle are complementary, so angle CAD is ...

  ∠CAD = 90° -60° = 30°

When an angle is divided, the whole is the sum of the parts.

  ∠DAB +∠CAD = ∠CAB

  ∠DAB +30° = 78°

  ∠DAB = 48° . . . . . . . . . . subtract 30°

_____

Alternate solution

The sum of angles in a triangle is 180°, so ...

  60° +78° +∠B = 180°

  ∠B = 180° -138° = 42°

  ∠DAB = 90° -42° = 48° . . . . . acute angles in a right triangle

Thanks for stopping by. We are committed to providing the best answers for all your questions. See you again soon. Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. Westonci.ca is here to provide the answers you seek. Return often for more expert solutions.