Answered

IDNLearn.com makes it easy to get reliable answers from knowledgeable individuals. Get step-by-step guidance for all your technical questions from our dedicated community members.

Quadrilateral ABCD has the following angle measures:

m∠A = 105°, m∠B = ?°, m∠C = 34°, m∠D = 90°

What is m∠B?


pleeeeease help!!

Sagot :

Devishri1977idn

Answer:

131°

Step-by-step explanation:

Sum of all angles of a quadrilateral = 360°

We can find the unknown angle ∠B, by subtracting the sum of the angles ∠A, ∠C, ∠D from 360°.

∠A + ∠B + ∠C + ∠D = 360

105 + ∠B + 34 + 90  = 360

           ∠B +  229      = 360

                     ∠B       = 360 - 229

                           ∠B = 131°

We value your participation in this forum. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. Thanks for visiting IDNLearn.com. We’re dedicated to providing clear answers, so visit us again for more helpful information.