Geometriia Kniga Ershovoi Str 167 Variant A2 8 Klass Apr 2026

The following graph illustrates the relationship between the central angle ( ∠AOCangle cap A cap O cap C ) and the inscribed angle ( ∠ABCangle cap A cap B cap C ) subtending the same arc. Final Answer ✅ The inscribed angle ∠ABCangle cap A cap B cap C 70∘70 raised to the composed with power АЛГЕБРА ГЕОМЕТРИЯ

∠ABC=12⋅140∘=70∘angle cap A cap B cap C equals one-half center dot 140 raised to the composed with power equals 70 raised to the composed with power Since point geometriia kniga ershovoi str 167 variant a2 8 klass

According to the theorem on inscribed angles, an inscribed angle is equal to half of the central angle that subtends the same arc. The following graph illustrates the relationship between the

is on the major arc, the inscribed angle subtends the minor arc ACcap A cap C . The calculation above is correct for this configuration. Educational Visualization The calculation above is correct for this configuration

Based on the popular textbook by A.P. Ershova and V.V. Goloborodko, page 167 typically contains problems from Self-study Work S-13 (or the end of S-12), which focuses on the properties of Central and Inscribed Angles in a circle.

∠ABC=12⋅∠AOCangle cap A cap B cap C equals one-half center dot angle cap A cap O cap C