In an isosceles ΔABC, if AC = BC and AB2 = 2AC2 then ∠C = ?

AB2 = 2AC2AB2 = AC2 + AC2AB2 = AC2 + BC2Therefore, it is an isosceles triangle right angled at C. ∠ C = 90°

Q49 of 186 Page 263

In an isosceles ΔABC, if AC = BC and AB² = 2AC² then ∠C = ?

AB² = 2AC²

AB² = AC² + AC²

AB² = AC² + BC²

Therefore, it is an isosceles triangle right angled at C. ∠ C = 90°

If ΔABC ~ ΔQEP , AB = 18 cm and BC = 15 cm then PR = ?

In the given figure, O is the point of intersection of two chords AB and CD such that OB = OD and ∠AOC = 45°. Then, ∠OAC and ΔODB are

In ΔABC, if AB = 16 cm, BC = 12 cm and AC = 20 cm, then ΔABC is

Which of the following is a true statement?