Answered

At Westonci.ca, we make it easy for you to get the answers you need from a community of knowledgeable individuals. Join our platform to connect with experts ready to provide detailed answers to your questions in various areas. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

In ΔABC, if m∠A = 43° and m∠C = 66°, then find m∠B.
(Points : 3)
71°
47°
114°
109°

Sagot :

naǫ
The measures of the angles in a triangle add up to 180°.
[tex]m \angle A + m \angle B + m \angle C = 180^\circ \\ m \angle A=43^\circ, \ m \angle C = 66^\circ \\ \downarrow \\ 43^\circ+ m \angle B + 66^\circ = 180^\circ \\ m \angle B + 109^\circ = 180^\circ \\ m \angle B =180^\circ - 109^\circ \\ \boxed{m \angle B=71^\circ}[/tex]
We hope our answers were helpful. Return anytime for more information and answers to any other questions you may have. We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Thank you for visiting Westonci.ca, your go-to source for reliable answers. Come back soon for more expert insights.