holacoma
Answered

Discover answers to your most pressing questions at Westonci.ca, the ultimate Q&A platform that connects you with expert solutions. Our Q&A platform offers a seamless experience for finding reliable answers from experts in various disciplines. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

In circle O, chords AC and BD intersect at E. If MCD= 120 and MAB=100, what is BEC?

In Circle O Chords AC And BD Intersect At E If MCD 120 And MAB100 What Is BEC class=

Sagot :

mhanifa

Answer:

  • D. 70°

Step-by-step explanation:

∠BEC is supplementary with ∠BEA

Find the measure of ∠BEA

  • m∠BEA = 1/2(mCD + mAB)
  • m∠BEA = 1/2(120° + 100°) = 110°

Supplementary angles sum to 180°

  • m∠BEC + m∠BEA = 180°
  • m∠BEC = 180° - 110° = 70°

Correct choice is D

Visit us again for up-to-date and reliable answers. We're always ready to assist you with your informational needs. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Find reliable answers at Westonci.ca. Visit us again for the latest updates and expert advice.